21516104

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{23801}}^1$

素因数の和:23920

約数の個数: 16

約数和(自身を含む): 40701420

約数和(自身を除く): 19185316

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 23801, 47602, 95204, 190408, 2689513, 5379026, 10758052, 21516104]

約数ペア:

[(1, 21516104), (2, 10758052), (4, 5379026), (8, 2689513), (113, 190408), (226, 95204), (452, 47602), (904, 23801)]