81198657

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{1381}}^1$

素因数の和:1573

約数の個数: 24

約数和(自身を含む): 120731520

約数和(自身を除く): 39532863

約数列:

[1, 3, 9, 47, 139, 141, 417, 423, 1251, 1381, 4143, 6533, 12429, 19599, 58797, 64907, 191959, 194721, 575877, 584163, 1727631, 9022073, 27066219, 81198657]

約数ペア:

[(1, 81198657), (3, 27066219), (9, 9022073), (47, 1727631), (139, 584163), (141, 575877), (417, 194721), (423, 191959), (1251, 64907), (1381, 58797), (4143, 19599), (6533, 12429)]