21175368680

素因数分解:

$2^3\times 5^1\times {\mathrm{529384217}}^1$

素因数の和:529384228

約数の個数: 16

約数和(自身を含む): 47644579620

約数和(自身を除く): 26469210940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 529384217, 1058768434, 2117536868, 2646921085, 4235073736, 5293842170, 10587684340, 21175368680]

約数ペア:

[(1, 21175368680), (2, 10587684340), (4, 5293842170), (5, 4235073736), (8, 2646921085), (10, 2117536868), (20, 1058768434), (40, 529384217)]