20570805

素因数分解:

$3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1091}}^1$

素因数の和:1521

約数の個数: 24

約数和(自身を含む): 35773920

約数和(自身を除く): 15203115

約数列:

[1, 3, 5, 9, 15, 45, 419, 1091, 1257, 2095, 3273, 3771, 5455, 6285, 9819, 16365, 18855, 49095, 457129, 1371387, 2285645, 4114161, 6856935, 20570805]

約数ペア:

[(1, 20570805), (3, 6856935), (5, 4114161), (9, 2285645), (15, 1371387), (45, 457129), (419, 49095), (1091, 18855), (1257, 16365), (2095, 9819), (3273, 6285), (3771, 5455)]