20561432

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4877}}^1$

素因数の和:4931

約数の個数: 32

約数和(自身を含む): 42145920

約数和(自身を除く): 21584488

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 4877, 9754, 19508, 39016, 82909, 151187, 165818, 302374, 331636, 604748, 663272, 1209496, 2570179, 5140358, 10280716, 20561432]

約数ペア:

[(1, 20561432), (2, 10280716), (4, 5140358), (8, 2570179), (17, 1209496), (31, 663272), (34, 604748), (62, 331636), (68, 302374), (124, 165818), (136, 151187), (248, 82909), (527, 39016), (1054, 19508), (2108, 9754), (4216, 4877)]