811665

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1061}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 1491048

約数和(自身を除く): 679383

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 1061, 3183, 5305, 9549, 15915, 18037, 47745, 54111, 90185, 162333, 270555, 811665]

約数ペア:

[(1, 811665), (3, 270555), (5, 162333), (9, 90185), (15, 54111), (17, 47745), (45, 18037), (51, 15915), (85, 9549), (153, 5305), (255, 3183), (765, 1061)]