21288304804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{158617}}^1$

素因数の和:158752

約数の個数: 48

約数和(自身を含む): 41970322800

約数和(自身を除く): 20682017996

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 89, 116, 178, 356, 377, 754, 1157, 1508, 2314, 2581, 4628, 5162, 10324, 33553, 67106, 134212, 158617, 317234, 634468, 2062021, 4124042, 4599893, 8248084, 9199786, 14116913, 18399572, 28233826, 56467652, 59798609, 119597218, 183519869, 239194436, 367039738, 409390477, 734079476, 818780954, 1637561908, 5322076201, 10644152402, 21288304804]

約数ペア:

[(1, 21288304804), (2, 10644152402), (4, 5322076201), (13, 1637561908), (26, 818780954), (29, 734079476), (52, 409390477), (58, 367039738), (89, 239194436), (116, 183519869), (178, 119597218), (356, 59798609), (377, 56467652), (754, 28233826), (1157, 18399572), (1508, 14116913), (2314, 9199786), (2581, 8248084), (4628, 4599893), (5162, 4124042), (10324, 2062021), (33553, 634468), (67106, 317234), (134212, 158617)]