21532815

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10181}}^1$

素因数の和:10239

約数の個数: 24

約数和(自身を含む): 38121408

約数和(自身を除く): 16588593

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 10181, 30543, 50905, 91629, 152715, 458145, 478507, 1435521, 2392535, 4306563, 7177605, 21532815]

約数ペア:

[(1, 21532815), (3, 7177605), (5, 4306563), (9, 2392535), (15, 1435521), (45, 478507), (47, 458145), (141, 152715), (235, 91629), (423, 50905), (705, 30543), (2115, 10181)]