21385394

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1\times {\mathrm{881}}^1$

素因数の和:1165

約数の個数: 16

約数和(自身を含む): 32863320

約数和(自身を除く): 11477926

約数列:

[1, 2, 53, 106, 229, 458, 881, 1762, 12137, 24274, 46693, 93386, 201749, 403498, 10692697, 21385394]

約数ペア:

[(1, 21385394), (2, 10692697), (53, 403498), (106, 201749), (229, 93386), (458, 46693), (881, 24274), (1762, 12137)]