257479850943

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{66999701}}^1$

素因数の和:66999775

約数の個数: 24

約数和(自身を含む): 432014078496

約数和(自身を除く): 174534227553

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 66999701, 200999103, 468997907, 602997309, 1406993721, 4086981761, 4220981163, 12260945283, 28608872327, 36782835849, 85826616981, 257479850943]

約数ペア:

[(1, 257479850943), (3, 85826616981), (7, 36782835849), (9, 28608872327), (21, 12260945283), (61, 4220981163), (63, 4086981761), (183, 1406993721), (427, 602997309), (549, 468997907), (1281, 200999103), (3843, 66999701)]