20969179

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1303}}^1$

素因数の和:1351

約数の個数: 24

約数和(自身を含む): 27749120

約数和(自身を除く): 6779941

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1303, 1463, 2299, 9121, 14333, 16093, 24757, 100331, 157663, 173299, 272327, 1103641, 1906289, 2995597, 20969179]

約数ペア:

[(1, 20969179), (7, 2995597), (11, 1906289), (19, 1103641), (77, 272327), (121, 173299), (133, 157663), (209, 100331), (847, 24757), (1303, 16093), (1463, 14333), (2299, 9121)]