721000293

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{2137}}^1$

素因数の和:2405

約数の個数: 32

約数和(自身を含む): 1066058112

約数和(自身を除く): 345057819

約数列:

[1, 3, 13, 39, 41, 123, 211, 533, 633, 1599, 2137, 2743, 6411, 8229, 8651, 25953, 27781, 83343, 87617, 112463, 262851, 337389, 450907, 1139021, 1352721, 3417063, 5861791, 17585373, 18487187, 55461561, 240333431, 721000293]

約数ペア:

[(1, 721000293), (3, 240333431), (13, 55461561), (39, 18487187), (41, 17585373), (123, 5861791), (211, 3417063), (533, 1352721), (633, 1139021), (1599, 450907), (2137, 337389), (2743, 262851), (6411, 112463), (8229, 87617), (8651, 83343), (25953, 27781)]