20998042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{10223}}^1$

素因数の和:10317

約数の個数: 16

約数和(自身を含む): 34352640

約数和(自身を除く): 13354598

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 10223, 20446, 132899, 265798, 807617, 1615234, 10499021, 20998042]

約数ペア:

[(1, 20998042), (2, 10499021), (13, 1615234), (26, 807617), (79, 265798), (158, 132899), (1027, 20446), (2054, 10223)]