21014788

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7187}}^1$

素因数の和:7251

約数の個数: 24

約数和(自身を含む): 39850272

約数和(自身を除く): 18835484

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 7187, 14374, 28748, 122179, 244358, 309041, 488716, 618082, 1236164, 5253697, 10507394, 21014788]

約数ペア:

[(1, 21014788), (2, 10507394), (4, 5253697), (17, 1236164), (34, 618082), (43, 488716), (68, 309041), (86, 244358), (172, 122179), (731, 28748), (1462, 14374), (2924, 7187)]