18274220

素因数分解:

$2^2\times 5^1\times {\mathrm{941}}^1\times {\mathrm{971}}^1$

素因数の和:1921

約数の個数: 24

約数和(自身を含む): 38456208

約数和(自身を除く): 20181988

約数列:

[1, 2, 4, 5, 10, 20, 941, 971, 1882, 1942, 3764, 3884, 4705, 4855, 9410, 9710, 18820, 19420, 913711, 1827422, 3654844, 4568555, 9137110, 18274220]

約数ペア:

[(1, 18274220), (2, 9137110), (4, 4568555), (5, 3654844), (10, 1827422), (20, 913711), (941, 19420), (971, 18820), (1882, 9710), (1942, 9410), (3764, 4855), (3884, 4705)]