20993564

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2549}}^1$

素因数の和:2653

約数の個数: 24

約数和(自身を含む): 38556000

約数和(自身を除く): 17562436

約数列:

[1, 2, 4, 29, 58, 71, 116, 142, 284, 2059, 2549, 4118, 5098, 8236, 10196, 73921, 147842, 180979, 295684, 361958, 723916, 5248391, 10496782, 20993564]

約数ペア:

[(1, 20993564), (2, 10496782), (4, 5248391), (29, 723916), (58, 361958), (71, 295684), (116, 180979), (142, 147842), (284, 73921), (2059, 10196), (2549, 8236), (4118, 5098)]