261348477

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^3\times {\mathrm{977}}^1$

素因数の和:1050

約数の個数: 32

約数和(自身を含む): 396520320

約数和(自身を除く): 135171843

約数列:

[1, 3, 13, 19, 39, 57, 247, 361, 741, 977, 1083, 2931, 4693, 6859, 12701, 14079, 18563, 20577, 38103, 55689, 89167, 241319, 267501, 352697, 723957, 1058091, 4585061, 6701243, 13755183, 20103729, 87116159, 261348477]

約数ペア:

[(1, 261348477), (3, 87116159), (13, 20103729), (19, 13755183), (39, 6701243), (57, 4585061), (247, 1058091), (361, 723957), (741, 352697), (977, 267501), (1083, 241319), (2931, 89167), (4693, 55689), (6859, 38103), (12701, 20577), (14079, 18563)]