20898156968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{200943817}}^1$

素因数の和:200943836

約数の個数: 16

約数和(自身を含む): 42198201780

約数和(自身を除く): 21300044812

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 200943817, 401887634, 803775268, 1607550536, 2612269621, 5224539242, 10449078484, 20898156968]

約数ペア:

[(1, 20898156968), (2, 10449078484), (4, 5224539242), (8, 2612269621), (13, 1607550536), (26, 803775268), (52, 401887634), (104, 200943817)]