21369326

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:640

約数の個数: 24

約数和(自身を含む): 35479080

約数和(自身を除く): 14109754

約数列:

[1, 2, 11, 22, 121, 227, 242, 389, 454, 778, 2497, 4279, 4994, 8558, 27467, 47069, 54934, 88303, 94138, 176606, 971333, 1942666, 10684663, 21369326]

約数ペア:

[(1, 21369326), (2, 10684663), (11, 1942666), (22, 971333), (121, 176606), (227, 94138), (242, 88303), (389, 54934), (454, 47069), (778, 27467), (2497, 8558), (4279, 4994)]