21158255

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{3559}}^1$

素因数の和:3634

約数の個数: 16

約数和(自身を含む): 26913600

約数和(自身を除く): 5755345

約数列:

[1, 5, 29, 41, 145, 205, 1189, 3559, 5945, 17795, 103211, 145919, 516055, 729595, 4231651, 21158255]

約数ペア:

[(1, 21158255), (5, 4231651), (29, 729595), (41, 516055), (145, 145919), (205, 103211), (1189, 17795), (3559, 5945)]