20157884

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{719}}^1$

素因数の和:929

約数の個数: 24

約数和(自身を含む): 36368640

約数和(自身を除く): 16210756

約数列:

[1, 2, 4, 43, 86, 163, 172, 326, 652, 719, 1438, 2876, 7009, 14018, 28036, 30917, 61834, 117197, 123668, 234394, 468788, 5039471, 10078942, 20157884]

約数ペア:

[(1, 20157884), (2, 10078942), (4, 5039471), (43, 468788), (86, 234394), (163, 123668), (172, 117197), (326, 61834), (652, 30917), (719, 28036), (1438, 14018), (2876, 7009)]