257608233

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{13781}}^1$

素因数の和:13885

約数の個数: 24

約数和(自身を含む): 389865216

約数和(自身を除く): 132256983

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 2077, 6231, 13781, 18693, 41343, 124029, 427211, 923327, 1281633, 2769981, 3844899, 8309943, 28623137, 85869411, 257608233]

約数ペア:

[(1, 257608233), (3, 85869411), (9, 28623137), (31, 8309943), (67, 3844899), (93, 2769981), (201, 1281633), (279, 923327), (603, 427211), (2077, 124029), (6231, 41343), (13781, 18693)]