20809124

素因数分解:

$2^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:577

約数の個数: 48

約数和(自身を含む): 44016000

約数和(自身を除く): 23206876

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 343, 406, 523, 686, 812, 1046, 1372, 1421, 2092, 2842, 3661, 5684, 7322, 9947, 14644, 15167, 19894, 25627, 30334, 39788, 51254, 60668, 102508, 106169, 179389, 212338, 358778, 424676, 717556, 743183, 1486366, 2972732, 5202281, 10404562, 20809124]

約数ペア:

[(1, 20809124), (2, 10404562), (4, 5202281), (7, 2972732), (14, 1486366), (28, 743183), (29, 717556), (49, 424676), (58, 358778), (98, 212338), (116, 179389), (196, 106169), (203, 102508), (343, 60668), (406, 51254), (523, 39788), (686, 30334), (812, 25627), (1046, 19894), (1372, 15167), (1421, 14644), (2092, 9947), (2842, 7322), (3661, 5684)]