398386443

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{33937}}^1$

素因数の和:34003

約数の個数: 32

約数和(自身を含む): 668985856

約数和(自身を除く): 270599413

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 11739, 33937, 101811, 237559, 441181, 712677, 1323543, 1459291, 3088267, 4377873, 9264801, 10215037, 18970783, 30645111, 56912349, 132795481, 398386443]

約数ペア:

[(1, 398386443), (3, 132795481), (7, 56912349), (13, 30645111), (21, 18970783), (39, 10215037), (43, 9264801), (91, 4377873), (129, 3088267), (273, 1459291), (301, 1323543), (559, 712677), (903, 441181), (1677, 237559), (3913, 101811), (11739, 33937)]