21288612

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{41257}}^1$

素因数の和:41307

約数の個数: 24

約数和(自身を含む): 50829856

約数和(自身を除く): 29541244

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 41257, 82514, 123771, 165028, 247542, 495084, 1774051, 3548102, 5322153, 7096204, 10644306, 21288612]

約数ペア:

[(1, 21288612), (2, 10644306), (3, 7096204), (4, 5322153), (6, 3548102), (12, 1774051), (43, 495084), (86, 247542), (129, 165028), (172, 123771), (258, 82514), (516, 41257)]