20013968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{96221}}^1$

素因数の和:96242

約数の個数: 20

約数和(自身を含む): 41760348

約数和(自身を除く): 21746380

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 96221, 192442, 384884, 769768, 1250873, 1539536, 2501746, 5003492, 10006984, 20013968]

約数ペア:

[(1, 20013968), (2, 10006984), (4, 5003492), (8, 2501746), (13, 1539536), (16, 1250873), (26, 769768), (52, 384884), (104, 192442), (208, 96221)]