20398504

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3061}}^1$

素因数の和:3098

約数の個数: 48

約数和(自身を含む): 47124180

約数和(自身を除く): 26725676

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 3061, 3332, 6122, 6664, 12244, 21427, 24488, 42854, 52037, 85708, 104074, 149989, 171416, 208148, 299978, 364259, 416296, 599956, 728518, 1199912, 1457036, 2549813, 2914072, 5099626, 10199252, 20398504]

約数ペア:

[(1, 20398504), (2, 10199252), (4, 5099626), (7, 2914072), (8, 2549813), (14, 1457036), (17, 1199912), (28, 728518), (34, 599956), (49, 416296), (56, 364259), (68, 299978), (98, 208148), (119, 171416), (136, 149989), (196, 104074), (238, 85708), (392, 52037), (476, 42854), (833, 24488), (952, 21427), (1666, 12244), (3061, 6664), (3332, 6122)]