20217921178

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{571}}^1\times {\mathrm{757}}^1$

素因数の和:1607

約数の個数: 64

約数和(自身を含む): 37585836288

約数和(自身を除く): 17367915110

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 257, 514, 571, 757, 1142, 1514, 1799, 3341, 3598, 3997, 5299, 6682, 7423, 7994, 9841, 10598, 14846, 19682, 23387, 46774, 51961, 68887, 103922, 137774, 146747, 194549, 293494, 389098, 432247, 864494, 1027229, 1361843, 1907711, 2054458, 2529137, 2723686, 3025729, 3815422, 5058274, 5619211, 6051458, 11238422, 13353977, 17703959, 26707954, 35407918, 39334477, 78668954, 111087479, 222174958, 777612353, 1444137227, 1555224706, 2888274454, 10108960589, 20217921178]

約数ペア:

[(1, 20217921178), (2, 10108960589), (7, 2888274454), (13, 1555224706), (14, 1444137227), (26, 777612353), (91, 222174958), (182, 111087479), (257, 78668954), (514, 39334477), (571, 35407918), (757, 26707954), (1142, 17703959), (1514, 13353977), (1799, 11238422), (3341, 6051458), (3598, 5619211), (3997, 5058274), (5299, 3815422), (6682, 3025729), (7423, 2723686), (7994, 2529137), (9841, 2054458), (10598, 1907711), (14846, 1361843), (19682, 1027229), (23387, 864494), (46774, 432247), (51961, 389098), (68887, 293494), (103922, 194549), (137774, 146747)]