20105811

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4723}}^1$

素因数の和:4783

約数の個数: 24

約数和(自身を含む): 32425536

約数和(自身を除く): 12319725

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 4723, 14169, 42507, 51953, 155859, 203089, 467577, 609267, 1827801, 2233979, 6701937, 20105811]

約数ペア:

[(1, 20105811), (3, 6701937), (9, 2233979), (11, 1827801), (33, 609267), (43, 467577), (99, 203089), (129, 155859), (387, 51953), (473, 42507), (1419, 14169), (4257, 4723)]