20686892

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2791}}^1$

素因数の和:2921

約数の個数: 24

約数和(自身を含む): 38697120

約数和(自身を除く): 18010228

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2791, 3706, 5582, 7412, 11164, 47447, 94894, 189788, 304219, 608438, 1216876, 5171723, 10343446, 20686892]

約数ペア:

[(1, 20686892), (2, 10343446), (4, 5171723), (17, 1216876), (34, 608438), (68, 304219), (109, 189788), (218, 94894), (436, 47447), (1853, 11164), (2791, 7412), (3706, 5582)]