20865564

素因数分解:

$2^2\times 3^2\times {\mathrm{229}}^1\times {\mathrm{2531}}^1$

素因数の和:2770

約数の個数: 36

約数和(自身を含む): 52994760

約数和(自身を除く): 32129196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 229, 458, 687, 916, 1374, 2061, 2531, 2748, 4122, 5062, 7593, 8244, 10124, 15186, 22779, 30372, 45558, 91116, 579599, 1159198, 1738797, 2318396, 3477594, 5216391, 6955188, 10432782, 20865564]

約数ペア:

[(1, 20865564), (2, 10432782), (3, 6955188), (4, 5216391), (6, 3477594), (9, 2318396), (12, 1738797), (18, 1159198), (36, 579599), (229, 91116), (458, 45558), (687, 30372), (916, 22779), (1374, 15186), (2061, 10124), (2531, 8244), (2748, 7593), (4122, 5062)]