20817038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8681}}^1$

素因数の和:8803

約数の個数: 16

約数和(自身を含む): 34380720

約数和(自身を除く): 13563682

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8681, 17362, 95491, 190982, 946229, 1892458, 10408519, 20817038]

約数ペア:

[(1, 20817038), (2, 10408519), (11, 1892458), (22, 946229), (109, 190982), (218, 95491), (1199, 17362), (2398, 8681)]