20486564

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 43803648

約数和(自身を除く): 23317084

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 193, 223, 238, 386, 446, 476, 772, 892, 1351, 1561, 2702, 3122, 3281, 3791, 5404, 6244, 6562, 7582, 13124, 15164, 22967, 26537, 43039, 45934, 53074, 86078, 91868, 106148, 172156, 301273, 602546, 731663, 1205092, 1463326, 2926652, 5121641, 10243282, 20486564]

約数ペア:

[(1, 20486564), (2, 10243282), (4, 5121641), (7, 2926652), (14, 1463326), (17, 1205092), (28, 731663), (34, 602546), (68, 301273), (119, 172156), (193, 106148), (223, 91868), (238, 86078), (386, 53074), (446, 45934), (476, 43039), (772, 26537), (892, 22967), (1351, 15164), (1561, 13124), (2702, 7582), (3122, 6562), (3281, 6244), (3791, 5404)]