21816878

素因数分解:

$2^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:739

約数の個数: 16

約数和(自身を含む): 33210000

約数和(自身を除く): 11393122

約数列:

[1, 2, 149, 179, 298, 358, 409, 818, 26671, 53342, 60941, 73211, 121882, 146422, 10908439, 21816878]

約数ペア:

[(1, 21816878), (2, 10908439), (149, 146422), (179, 121882), (298, 73211), (358, 60941), (409, 53342), (818, 26671)]