20873908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{3413}}^1$

素因数の和:3567

約数の個数: 24

約数和(自身を含む): 40148640

約数和(自身を除く): 19274732

約数列:

[1, 2, 4, 11, 22, 44, 139, 278, 556, 1529, 3058, 3413, 6116, 6826, 13652, 37543, 75086, 150172, 474407, 948814, 1897628, 5218477, 10436954, 20873908]

約数ペア:

[(1, 20873908), (2, 10436954), (4, 5218477), (11, 1897628), (22, 948814), (44, 474407), (139, 150172), (278, 75086), (556, 37543), (1529, 13652), (3058, 6826), (3413, 6116)]