20404449

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2389}}^1$

素因数の和:2481

約数の個数: 24

約数和(自身を含む): 32188520

約数和(自身を除く): 11784071

約数列:

[1, 3, 9, 13, 39, 73, 117, 219, 657, 949, 2389, 2847, 7167, 8541, 21501, 31057, 93171, 174397, 279513, 523191, 1569573, 2267161, 6801483, 20404449]

約数ペア:

[(1, 20404449), (3, 6801483), (9, 2267161), (13, 1569573), (39, 523191), (73, 279513), (117, 174397), (219, 93171), (657, 31057), (949, 21501), (2389, 8541), (2847, 7167)]