21712978

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{13033}}^1$

素因数の和:13066

約数の個数: 24

約数和(自身を含む): 40118652

約数和(自身を除く): 18405674

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 13033, 26066, 91231, 182462, 221561, 443122, 638617, 1277234, 1550927, 3101854, 10856489, 21712978]

約数ペア:

[(1, 21712978), (2, 10856489), (7, 3101854), (14, 1550927), (17, 1277234), (34, 638617), (49, 443122), (98, 221561), (119, 182462), (238, 91231), (833, 26066), (1666, 13033)]