388377927

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{47059}}^1$

素因数の和:47203

約数の個数: 24

約数和(自身を含む): 646039680

約数和(自身を除く): 257661753

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2751, 8253, 47059, 141177, 329413, 423531, 988239, 2964717, 6164729, 18494187, 43153103, 55482561, 129459309, 388377927]

約数ペア:

[(1, 388377927), (3, 129459309), (7, 55482561), (9, 43153103), (21, 18494187), (63, 6164729), (131, 2964717), (393, 988239), (917, 423531), (1179, 329413), (2751, 141177), (8253, 47059)]