21265908

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{41213}}^1$

素因数の和:41263

約数の個数: 24

約数和(自身を含む): 50775648

約数和(自身を除く): 29509740

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 41213, 82426, 123639, 164852, 247278, 494556, 1772159, 3544318, 5316477, 7088636, 10632954, 21265908]

約数ペア:

[(1, 21265908), (2, 10632954), (3, 7088636), (4, 5316477), (6, 3544318), (12, 1772159), (43, 494556), (86, 247278), (129, 164852), (172, 123639), (258, 82426), (516, 41213)]