21205524

素因数分解:

$2^2\times 3^1\times {\mathrm{443}}^1\times {\mathrm{3989}}^1$

素因数の和:4439

約数の個数: 24

約数和(自身を含む): 49603680

約数和(自身を除く): 28398156

約数列:

[1, 2, 3, 4, 6, 12, 443, 886, 1329, 1772, 2658, 3989, 5316, 7978, 11967, 15956, 23934, 47868, 1767127, 3534254, 5301381, 7068508, 10602762, 21205524]

約数ペア:

[(1, 21205524), (2, 10602762), (3, 7068508), (4, 5301381), (6, 3534254), (12, 1767127), (443, 47868), (886, 23934), (1329, 15956), (1772, 11967), (2658, 7978), (3989, 5316)]