664209

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 1182272

約数和(自身を除く): 518063

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 811, 819, 2433, 5677, 7299, 10543, 17031, 31629, 51093, 73801, 94887, 221403, 664209]

約数ペア:

[(1, 664209), (3, 221403), (7, 94887), (9, 73801), (13, 51093), (21, 31629), (39, 17031), (63, 10543), (91, 7299), (117, 5677), (273, 2433), (811, 819)]