28221985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3917}}^1$

素因数の和:4064

約数の個数: 16

約数和(自身を含む): 37236672

約数和(自身を除く): 9014687

約数列:

[1, 5, 11, 55, 131, 655, 1441, 3917, 7205, 19585, 43087, 215435, 513127, 2565635, 5644397, 28221985]

約数ペア:

[(1, 28221985), (5, 5644397), (11, 2565635), (55, 513127), (131, 215435), (655, 43087), (1441, 19585), (3917, 7205)]