21350704

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31033}}^1$

素因数の和:31084

約数の個数: 20

約数和(自身を含む): 42330376

約数和(自身を除く): 20979672

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31033, 62066, 124132, 248264, 496528, 1334419, 2668838, 5337676, 10675352, 21350704]

約数ペア:

[(1, 21350704), (2, 10675352), (4, 5337676), (8, 2668838), (16, 1334419), (43, 496528), (86, 248264), (172, 124132), (344, 62066), (688, 31033)]