251356

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 516096

約数和(自身を除く): 264740

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 191, 329, 382, 658, 764, 1316, 1337, 2674, 5348, 8977, 17954, 35908, 62839, 125678, 251356]

約数ペア:

[(1, 251356), (2, 125678), (4, 62839), (7, 35908), (14, 17954), (28, 8977), (47, 5348), (94, 2674), (188, 1337), (191, 1316), (329, 764), (382, 658)]