20781567382023

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{811}}^1\times {\mathrm{2417}}^1$

素因数の和:3798

約数の個数: 192

約数和(自身を含む): 38372374010880

約数和(自身を除く): 17590806628857

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 521, 811, 969, 1071, 1197, 1563, 2261, 2417, 2433, 2907, 3647, 4689, 5677, 6783, 7251, 7299, 8857, 9899, 10941, 13787, 15409, 16919, 17031, 20349, 21753, 26571, 29697, 32823, 41089, 41361, 45923, 46227, 50757, 51093, 61999, 69293, 79713, 89091, 96509, 107863, 123267, 124083, 137769, 138681, 152271, 168283, 185997, 207879, 261953, 287623, 289527, 321461, 323589, 369801, 413307, 422531, 504849, 557991, 623637, 780691, 785859, 862869, 868581, 964383, 970767, 1177981, 1259257, 1267593, 1514547, 1833671, 1960187, 2342073, 2357577, 2588607, 2893149, 2957717, 3533943, 3777771, 3802779, 5464837, 5501013, 5880561, 7026219, 7183027, 8028089, 8814799, 8873151, 10601829, 11333313, 13721309, 16394511, 16503039, 17641683, 21407369, 21549081, 23925883, 24084267, 26444397, 26619453, 33323179, 37243553, 41163927, 49183533, 50281189, 56196623, 64222107, 64647243, 71777649, 72252801, 79333191, 99969537, 111730659, 123491781, 136477513, 149851583, 150843567, 167481181, 168589869, 192666321, 215332947, 233262253, 260704871, 299908611, 335191977, 406740011, 409432539, 449554749, 452530701, 502443543, 505769607, 633140401, 699786759, 782114613, 955342591, 1021257427, 1220220033, 1228297617, 1348664247, 1507330629, 1899421203, 2099360277, 2346343839, 2847180077, 2866027773, 3063772281, 3660660099, 4431982807, 5698263609, 7148801989, 8541540231, 8598083319, 9191316843, 13295948421, 17361376259, 19403891113, 21446405967, 25624620693, 39887845263, 52084128777, 58211673339, 64339217901, 121529633813, 135827237791, 156252386331, 174635020017, 329866148921, 364588901439, 407481713373, 989598446763, 1093766704317, 1222445140119, 2309063042447, 2968795340289, 6927189127341, 20781567382023]

約数ペア:

[(1, 20781567382023), (3, 6927189127341), (7, 2968795340289), (9, 2309063042447), (17, 1222445140119), (19, 1093766704317), (21, 989598446763), (51, 407481713373), (57, 364588901439), (63, 329866148921), (119, 174635020017), (133, 156252386331), (153, 135827237791), (171, 121529633813), (323, 64339217901), (357, 58211673339), (399, 52084128777), (521, 39887845263), (811, 25624620693), (969, 21446405967), (1071, 19403891113), (1197, 17361376259), (1563, 13295948421), (2261, 9191316843), (2417, 8598083319), (2433, 8541540231), (2907, 7148801989), (3647, 5698263609), (4689, 4431982807), (5677, 3660660099), (6783, 3063772281), (7251, 2866027773), (7299, 2847180077), (8857, 2346343839), (9899, 2099360277), (10941, 1899421203), (13787, 1507330629), (15409, 1348664247), (16919, 1228297617), (17031, 1220220033), (20349, 1021257427), (21753, 955342591), (26571, 782114613), (29697, 699786759), (32823, 633140401), (41089, 505769607), (41361, 502443543), (45923, 452530701), (46227, 449554749), (50757, 409432539), (51093, 406740011), (61999, 335191977), (69293, 299908611), (79713, 260704871), (89091, 233262253), (96509, 215332947), (107863, 192666321), (123267, 168589869), (124083, 167481181), (137769, 150843567), (138681, 149851583), (152271, 136477513), (168283, 123491781), (185997, 111730659), (207879, 99969537), (261953, 79333191), (287623, 72252801), (289527, 71777649), (321461, 64647243), (323589, 64222107), (369801, 56196623), (413307, 50281189), (422531, 49183533), (504849, 41163927), (557991, 37243553), (623637, 33323179), (780691, 26619453), (785859, 26444397), (862869, 24084267), (868581, 23925883), (964383, 21549081), (970767, 21407369), (1177981, 17641683), (1259257, 16503039), (1267593, 16394511), (1514547, 13721309), (1833671, 11333313), (1960187, 10601829), (2342073, 8873151), (2357577, 8814799), (2588607, 8028089), (2893149, 7183027), (2957717, 7026219), (3533943, 5880561), (3777771, 5501013), (3802779, 5464837)]