1328500521

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{77731}}^1$

素因数の和:77954

約数の個数: 20

約数和(自身を含む): 1993981264

約数和(自身を除く): 665480743

約数列:

[1, 3, 9, 27, 81, 211, 633, 1899, 5697, 17091, 77731, 233193, 699579, 2098737, 6296211, 16401241, 49203723, 147611169, 442833507, 1328500521]

約数ペア:

[(1, 1328500521), (3, 442833507), (9, 147611169), (27, 49203723), (81, 16401241), (211, 6296211), (633, 2098737), (1899, 699579), (5697, 233193), (17091, 77731)]