18694372

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 33679800

約数和(自身を除く): 14985428

約数列:

[1, 2, 4, 53, 106, 109, 212, 218, 436, 809, 1618, 3236, 5777, 11554, 23108, 42877, 85754, 88181, 171508, 176362, 352724, 4673593, 9347186, 18694372]

約数ペア:

[(1, 18694372), (2, 9347186), (4, 4673593), (53, 352724), (106, 176362), (109, 171508), (212, 88181), (218, 85754), (436, 42877), (809, 23108), (1618, 11554), (3236, 5777)]