21795545

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 26922240

約数和(自身を除く): 5126695

約数列:

[1, 5, 47, 163, 235, 569, 815, 2845, 7661, 26743, 38305, 92747, 133715, 463735, 4359109, 21795545]

約数ペア:

[(1, 21795545), (5, 4359109), (47, 463735), (163, 133715), (235, 92747), (569, 38305), (815, 26743), (2845, 7661)]