18690884

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 33337920

約数和(自身を除く): 14647036

約数列:

[1, 2, 4, 109, 163, 218, 263, 326, 436, 526, 652, 1052, 17767, 28667, 35534, 42869, 57334, 71068, 85738, 114668, 171476, 4672721, 9345442, 18690884]

約数ペア:

[(1, 18690884), (2, 9345442), (4, 4672721), (109, 171476), (163, 114668), (218, 85738), (263, 71068), (326, 57334), (436, 42869), (526, 35534), (652, 28667), (1052, 17767)]