21551045

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{853}}^1$

素因数の和:1052

約数の個数: 16

約数和(自身を含む): 26890752

約数和(自身を除く): 5339707

約数列:

[1, 5, 31, 155, 163, 815, 853, 4265, 5053, 25265, 26443, 132215, 139039, 695195, 4310209, 21551045]

約数ペア:

[(1, 21551045), (5, 4310209), (31, 695195), (155, 139039), (163, 132215), (815, 26443), (853, 25265), (4265, 5053)]