20638872

素因数分解:

$2^3\times 3^2\times {\mathrm{286651}}^1$

素因数の和:286663

約数の個数: 24

約数和(自身を含む): 55897140

約数和(自身を除く): 35258268

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 286651, 573302, 859953, 1146604, 1719906, 2293208, 2579859, 3439812, 5159718, 6879624, 10319436, 20638872]

約数ペア:

[(1, 20638872), (2, 10319436), (3, 6879624), (4, 5159718), (6, 3439812), (8, 2579859), (9, 2293208), (12, 1719906), (18, 1146604), (24, 859953), (36, 573302), (72, 286651)]