21118786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{757}}^1$

素因数の和:838

約数の個数: 32

約数和(自身を含む): 36293040

約数和(自身を除く): 15174254

約数列:

[1, 2, 13, 26, 29, 37, 58, 74, 377, 481, 754, 757, 962, 1073, 1514, 2146, 9841, 13949, 19682, 21953, 27898, 28009, 43906, 56018, 285389, 364117, 570778, 728234, 812261, 1624522, 10559393, 21118786]

約数ペア:

[(1, 21118786), (2, 10559393), (13, 1624522), (26, 812261), (29, 728234), (37, 570778), (58, 364117), (74, 285389), (377, 56018), (481, 43906), (754, 28009), (757, 27898), (962, 21953), (1073, 19682), (1514, 13949), (2146, 9841)]