12971812

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9857}}^1$

素因数の和:9915

約数の個数: 24

約数和(自身を含む): 26498304

約数和(自身を除く): 13526492

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 9857, 19714, 39428, 68999, 137998, 275996, 463279, 926558, 1853116, 3242953, 6485906, 12971812]

約数ペア:

[(1, 12971812), (2, 6485906), (4, 3242953), (7, 1853116), (14, 926558), (28, 463279), (47, 275996), (94, 137998), (188, 68999), (329, 39428), (658, 19714), (1316, 9857)]