278364717

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{6121}}^1$

素因数の和:6321

約数の個数: 24

約数和(自身を含む): 417667328

約数和(自身を除く): 139302611

約数列:

[1, 3, 9, 31, 93, 163, 279, 489, 1467, 5053, 6121, 15159, 18363, 45477, 55089, 189751, 569253, 997723, 1707759, 2993169, 8979507, 30929413, 92788239, 278364717]

約数ペア:

[(1, 278364717), (3, 92788239), (9, 30929413), (31, 8979507), (93, 2993169), (163, 1707759), (279, 997723), (489, 569253), (1467, 189751), (5053, 55089), (6121, 45477), (15159, 18363)]