12720138

素因数分解:

$2^1\times 3^1\times {\mathrm{457}}^1\times {\mathrm{4639}}^1$

素因数の和:5101

約数の個数: 16

約数和(自身を含む): 25501440

約数和(自身を除く): 12781302

約数列:

[1, 2, 3, 6, 457, 914, 1371, 2742, 4639, 9278, 13917, 27834, 2120023, 4240046, 6360069, 12720138]

約数ペア:

[(1, 12720138), (2, 6360069), (3, 4240046), (6, 2120023), (457, 27834), (914, 13917), (1371, 9278), (2742, 4639)]