21276554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1301}}^1$

素因数の和:1370

約数の個数: 32

約数和(自身を含む): 37403856

約数和(自身を除く): 16127302

約数列:

[1, 2, 13, 17, 26, 34, 37, 74, 221, 442, 481, 629, 962, 1258, 1301, 2602, 8177, 16354, 16913, 22117, 33826, 44234, 48137, 96274, 287521, 575042, 625781, 818329, 1251562, 1636658, 10638277, 21276554]

約数ペア:

[(1, 21276554), (2, 10638277), (13, 1636658), (17, 1251562), (26, 818329), (34, 625781), (37, 575042), (74, 287521), (221, 96274), (442, 48137), (481, 44234), (629, 33826), (962, 22117), (1258, 16913), (1301, 16354), (2602, 8177)]