21939197

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{701}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 26687232

約数和(自身を除く): 4748035

約数列:

[1, 7, 17, 119, 263, 701, 1841, 4471, 4907, 11917, 31297, 83419, 184363, 1290541, 3134171, 21939197]

約数ペア:

[(1, 21939197), (7, 3134171), (17, 1290541), (119, 184363), (263, 83419), (701, 31297), (1841, 11917), (4471, 4907)]