20391755103

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{3448631}}^1$

素因数の和:3448716

約数の個数: 20

約数和(自身を含む): 30879050928

約数和(自身を除く): 10487295825

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 3448631, 10345893, 31037679, 93113037, 251750063, 279339111, 755250189, 2265750567, 6797251701, 20391755103]

約数ペア:

[(1, 20391755103), (3, 6797251701), (9, 2265750567), (27, 755250189), (73, 279339111), (81, 251750063), (219, 93113037), (657, 31037679), (1971, 10345893), (5913, 3448631)]