20542238

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{1033}}^1$

素因数の和:1259

約数の個数: 16

約数和(自身を含む): 31541136

約数和(自身を除く): 10998898

約数列:

[1, 2, 61, 122, 163, 326, 1033, 2066, 9943, 19886, 63013, 126026, 168379, 336758, 10271119, 20542238]

約数ペア:

[(1, 20542238), (2, 10271119), (61, 336758), (122, 168379), (163, 126026), (326, 63013), (1033, 19886), (2066, 9943)]