21076319288

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64257071}}^1$

素因数の和:64257118

約数の個数: 16

約数和(自身を含む): 40481955360

約数和(自身を除く): 19405636072

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64257071, 128514142, 257028284, 514056568, 2634539911, 5269079822, 10538159644, 21076319288]

約数ペア:

[(1, 21076319288), (2, 10538159644), (4, 5269079822), (8, 2634539911), (41, 514056568), (82, 257028284), (164, 128514142), (328, 64257071)]