9921220

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2351}}^1$

素因数の和:2571

約数の個数: 24

約数和(自身を含む): 20942208

約数和(自身を除く): 11020988

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 2351, 4220, 4702, 9404, 11755, 23510, 47020, 496061, 992122, 1984244, 2480305, 4960610, 9921220]

約数ペア:

[(1, 9921220), (2, 4960610), (4, 2480305), (5, 1984244), (10, 992122), (20, 496061), (211, 47020), (422, 23510), (844, 11755), (1055, 9404), (2110, 4702), (2351, 4220)]