28608759

素因数分解:

$3^2\times {\mathrm{47}}^2\times {\mathrm{1439}}^1$

素因数の和:1539

約数の個数: 18

約数和(自身を含む): 42251040

約数和(自身を除く): 13642281

約数列:

[1, 3, 9, 47, 141, 423, 1439, 2209, 4317, 6627, 12951, 19881, 67633, 202899, 608697, 3178751, 9536253, 28608759]

約数ペア:

[(1, 28608759), (3, 9536253), (9, 3178751), (47, 608697), (141, 202899), (423, 67633), (1439, 19881), (2209, 12951), (4317, 6627)]