21465556

素因数分解:

$2^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{5077}}^1$

素因数の和:5239

約数の個数: 24

約数和(自身を含む): 43223936

約数和(自身を除く): 21758380

約数列:

[1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228, 5077, 10154, 20308, 35539, 71078, 142156, 766627, 1533254, 3066508, 5366389, 10732778, 21465556]

約数ペア:

[(1, 21465556), (2, 10732778), (4, 5366389), (7, 3066508), (14, 1533254), (28, 766627), (151, 142156), (302, 71078), (604, 35539), (1057, 20308), (2114, 10154), (4228, 5077)]