19205121663

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{3821}}^1$

素因数の和:3902

約数の個数: 144

約数和(自身を含む): 38163617856

約数和(自身を除く): 18958496193

約数列:

[1, 3, 7, 9, 13, 17, 19, 21, 39, 51, 57, 63, 91, 117, 119, 133, 153, 171, 221, 247, 273, 323, 357, 361, 399, 663, 741, 819, 969, 1071, 1083, 1197, 1547, 1729, 1989, 2223, 2261, 2527, 2907, 3249, 3821, 4199, 4641, 4693, 5187, 6137, 6783, 7581, 11463, 12597, 13923, 14079, 15561, 18411, 20349, 22743, 26747, 29393, 32851, 34389, 37791, 42237, 42959, 49673, 55233, 64957, 72599, 79781, 80241, 88179, 98553, 128877, 149019, 194871, 217797, 239343, 240723, 264537, 295659, 347711, 386631, 447057, 454699, 508193, 558467, 584613, 653391, 718029, 844441, 943787, 1043133, 1234183, 1364097, 1379381, 1524579, 1675401, 2533323, 2831361, 3129399, 3702549, 4092291, 4138143, 4573737, 5026203, 5911087, 6606509, 7599969, 8494083, 8639281, 9655667, 11107647, 12414429, 16044379, 17733261, 17931953, 19819527, 23449477, 25917843, 28967001, 48133137, 53199783, 53795859, 59458581, 70348431, 77753529, 86901003, 112310653, 125523671, 144399411, 161387577, 164146339, 211045293, 304843201, 336931959, 376571013, 492439017, 914529603, 1010795877, 1129713039, 1477317051, 2133902407, 2743588809, 6401707221, 19205121663]

約数ペア:

[(1, 19205121663), (3, 6401707221), (7, 2743588809), (9, 2133902407), (13, 1477317051), (17, 1129713039), (19, 1010795877), (21, 914529603), (39, 492439017), (51, 376571013), (57, 336931959), (63, 304843201), (91, 211045293), (117, 164146339), (119, 161387577), (133, 144399411), (153, 125523671), (171, 112310653), (221, 86901003), (247, 77753529), (273, 70348431), (323, 59458581), (357, 53795859), (361, 53199783), (399, 48133137), (663, 28967001), (741, 25917843), (819, 23449477), (969, 19819527), (1071, 17931953), (1083, 17733261), (1197, 16044379), (1547, 12414429), (1729, 11107647), (1989, 9655667), (2223, 8639281), (2261, 8494083), (2527, 7599969), (2907, 6606509), (3249, 5911087), (3821, 5026203), (4199, 4573737), (4641, 4138143), (4693, 4092291), (5187, 3702549), (6137, 3129399), (6783, 2831361), (7581, 2533323), (11463, 1675401), (12597, 1524579), (13923, 1379381), (14079, 1364097), (15561, 1234183), (18411, 1043133), (20349, 943787), (22743, 844441), (26747, 718029), (29393, 653391), (32851, 584613), (34389, 558467), (37791, 508193), (42237, 454699), (42959, 447057), (49673, 386631), (55233, 347711), (64957, 295659), (72599, 264537), (79781, 240723), (80241, 239343), (88179, 217797), (98553, 194871), (128877, 149019)]