21635458

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1579}}^1$

素因数の和:1642

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 16587902

約数列:

[1, 2, 13, 17, 26, 31, 34, 62, 221, 403, 442, 527, 806, 1054, 1579, 3158, 6851, 13702, 20527, 26843, 41054, 48949, 53686, 97898, 348959, 636337, 697918, 832133, 1272674, 1664266, 10817729, 21635458]

約数ペア:

[(1, 21635458), (2, 10817729), (13, 1664266), (17, 1272674), (26, 832133), (31, 697918), (34, 636337), (62, 348959), (221, 97898), (403, 53686), (442, 48949), (527, 41054), (806, 26843), (1054, 20527), (1579, 13702), (3158, 6851)]