21898318

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7727}}^1$

素因数の和:7851

約数の個数: 16

約数和(自身を含む): 35703360

約数和(自身を除く): 13805042

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7727, 15454, 100451, 200902, 842243, 1684486, 10949159, 21898318]

約数ペア:

[(1, 21898318), (2, 10949159), (13, 1684486), (26, 842243), (109, 200902), (218, 100451), (1417, 15454), (2834, 7727)]