21245526

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27449}}^1$

素因数の和:27500

約数の個数: 24

約数和(自身を含む): 47104200

約数和(自身を除く): 25858674

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27449, 54898, 82347, 164694, 247041, 494082, 1180307, 2360614, 3540921, 7081842, 10622763, 21245526]

約数ペア:

[(1, 21245526), (2, 10622763), (3, 7081842), (6, 3540921), (9, 2360614), (18, 1180307), (43, 494082), (86, 247041), (129, 164694), (258, 82347), (387, 54898), (774, 27449)]