21664404

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{5521}}^1$

素因数の和:5640

約数の個数: 36

約数和(自身を含む): 55275220

約数和(自身を除く): 33610816

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 5521, 11042, 16563, 22084, 33126, 49689, 66252, 99378, 198756, 601789, 1203578, 1805367, 2407156, 3610734, 5416101, 7221468, 10832202, 21664404]

約数ペア:

[(1, 21664404), (2, 10832202), (3, 7221468), (4, 5416101), (6, 3610734), (9, 2407156), (12, 1805367), (18, 1203578), (36, 601789), (109, 198756), (218, 99378), (327, 66252), (436, 49689), (654, 33126), (981, 22084), (1308, 16563), (1962, 11042), (3924, 5521)]