20451418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{6961}}^1$

素因数の和:7089

約数の個数: 16

約数和(自身を含む): 33334056

約数和(自身を除く): 12882638

約数列:

[1, 2, 13, 26, 113, 226, 1469, 2938, 6961, 13922, 90493, 180986, 786593, 1573186, 10225709, 20451418]

約数ペア:

[(1, 20451418), (2, 10225709), (13, 1573186), (26, 786593), (113, 180986), (226, 90493), (1469, 13922), (2938, 6961)]