18172531

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:163

約数の個数: 32

約数和(自身を含む): 22176000

約数和(自身を除く): 4003469

約数列:

[1, 13, 19, 29, 43, 59, 247, 377, 551, 559, 767, 817, 1121, 1247, 1711, 2537, 7163, 10621, 14573, 16211, 22243, 23693, 32509, 32981, 48203, 73573, 308009, 422617, 626639, 956449, 1397887, 18172531]

約数ペア:

[(1, 18172531), (13, 1397887), (19, 956449), (29, 626639), (43, 422617), (59, 308009), (247, 73573), (377, 48203), (551, 32981), (559, 32509), (767, 23693), (817, 22243), (1121, 16211), (1247, 14573), (1711, 10621), (2537, 7163)]