21637770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:93

約数の個数: 256

約数和(自身を含む): 74649600

約数和(自身を除く): 53011830

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 17, 19, 21, 22, 29, 30, 33, 34, 35, 38, 42, 51, 55, 57, 58, 66, 70, 77, 85, 87, 95, 102, 105, 110, 114, 119, 133, 145, 154, 165, 170, 174, 187, 190, 203, 209, 210, 231, 238, 255, 266, 285, 290, 319, 323, 330, 357, 374, 385, 399, 406, 418, 435, 462, 493, 510, 551, 561, 570, 595, 609, 627, 638, 646, 665, 714, 770, 798, 870, 935, 957, 969, 986, 1015, 1045, 1102, 1122, 1155, 1190, 1218, 1254, 1309, 1330, 1463, 1479, 1595, 1615, 1653, 1785, 1870, 1914, 1938, 1995, 2030, 2090, 2233, 2261, 2310, 2465, 2618, 2755, 2805, 2926, 2958, 3045, 3135, 3190, 3230, 3306, 3451, 3553, 3570, 3857, 3927, 3990, 4389, 4466, 4522, 4785, 4845, 4930, 5423, 5510, 5610, 6061, 6090, 6270, 6545, 6699, 6783, 6902, 7106, 7315, 7395, 7714, 7854, 8265, 8778, 9367, 9570, 9690, 10353, 10659, 10846, 11165, 11305, 11571, 12122, 13090, 13398, 13566, 14630, 14790, 16269, 16530, 17255, 17765, 18183, 18734, 19285, 19635, 20706, 21318, 21945, 22330, 22610, 23142, 24871, 27115, 28101, 30305, 32538, 33495, 33915, 34510, 35530, 36366, 37961, 38570, 39270, 42427, 43890, 46835, 49742, 51765, 53295, 54230, 56202, 57855, 60610, 65569, 66990, 67830, 74613, 75922, 81345, 84854, 90915, 93670, 103037, 103530, 106590, 113883, 115710, 124355, 127281, 131138, 140505, 149226, 162690, 181830, 189805, 196707, 206074, 212135, 227766, 248710, 254562, 281010, 309111, 327845, 373065, 379610, 393414, 424270, 515185, 569415, 618222, 636405, 655690, 721259, 746130, 983535, 1030370, 1138830, 1272810, 1442518, 1545555, 1967070, 2163777, 3091110, 3606295, 4327554, 7212590, 10818885, 21637770]

約数ペア:

[(1, 21637770), (2, 10818885), (3, 7212590), (5, 4327554), (6, 3606295), (7, 3091110), (10, 2163777), (11, 1967070), (14, 1545555), (15, 1442518), (17, 1272810), (19, 1138830), (21, 1030370), (22, 983535), (29, 746130), (30, 721259), (33, 655690), (34, 636405), (35, 618222), (38, 569415), (42, 515185), (51, 424270), (55, 393414), (57, 379610), (58, 373065), (66, 327845), (70, 309111), (77, 281010), (85, 254562), (87, 248710), (95, 227766), (102, 212135), (105, 206074), (110, 196707), (114, 189805), (119, 181830), (133, 162690), (145, 149226), (154, 140505), (165, 131138), (170, 127281), (174, 124355), (187, 115710), (190, 113883), (203, 106590), (209, 103530), (210, 103037), (231, 93670), (238, 90915), (255, 84854), (266, 81345), (285, 75922), (290, 74613), (319, 67830), (323, 66990), (330, 65569), (357, 60610), (374, 57855), (385, 56202), (399, 54230), (406, 53295), (418, 51765), (435, 49742), (462, 46835), (493, 43890), (510, 42427), (551, 39270), (561, 38570), (570, 37961), (595, 36366), (609, 35530), (627, 34510), (638, 33915), (646, 33495), (665, 32538), (714, 30305), (770, 28101), (798, 27115), (870, 24871), (935, 23142), (957, 22610), (969, 22330), (986, 21945), (1015, 21318), (1045, 20706), (1102, 19635), (1122, 19285), (1155, 18734), (1190, 18183), (1218, 17765), (1254, 17255), (1309, 16530), (1330, 16269), (1463, 14790), (1479, 14630), (1595, 13566), (1615, 13398), (1653, 13090), (1785, 12122), (1870, 11571), (1914, 11305), (1938, 11165), (1995, 10846), (2030, 10659), (2090, 10353), (2233, 9690), (2261, 9570), (2310, 9367), (2465, 8778), (2618, 8265), (2755, 7854), (2805, 7714), (2926, 7395), (2958, 7315), (3045, 7106), (3135, 6902), (3190, 6783), (3230, 6699), (3306, 6545), (3451, 6270), (3553, 6090), (3570, 6061), (3857, 5610), (3927, 5510), (3990, 5423), (4389, 4930), (4466, 4845), (4522, 4785)]