18907390

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4211}}^1$

素因数の和:4667

約数の個数: 16

約数和(自身を含む): 34117200

約数和(自身を除く): 15209810

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4211, 4490, 8422, 21055, 42110, 1890739, 3781478, 9453695, 18907390]

約数ペア:

[(1, 18907390), (2, 9453695), (5, 3781478), (10, 1890739), (449, 42110), (898, 21055), (2245, 8422), (4211, 4490)]