21265936

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{6679}}^1$

素因数の和:6886

約数の個数: 20

約数和(自身を含む): 41416000

約数和(自身を除く): 20150064

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 6679, 13358, 26716, 53432, 106864, 1329121, 2658242, 5316484, 10632968, 21265936]

約数ペア:

[(1, 21265936), (2, 10632968), (4, 5316484), (8, 2658242), (16, 1329121), (199, 106864), (398, 53432), (796, 26716), (1592, 13358), (3184, 6679)]