21370220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{46457}}^1$

素因数の和:46489

約数の個数: 24

約数和(自身を含む): 46829664

約数和(自身を除く): 25459444

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 46457, 92914, 185828, 232285, 464570, 929140, 1068511, 2137022, 4274044, 5342555, 10685110, 21370220]

約数ペア:

[(1, 21370220), (2, 10685110), (4, 5342555), (5, 4274044), (10, 2137022), (20, 1068511), (23, 929140), (46, 464570), (92, 232285), (115, 185828), (230, 92914), (460, 46457)]