21395493

素因数分解:

$3^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{709}}^1$

素因数の和:1201

約数の個数: 24

約数和(自身を含む): 35443200

約数和(自身を除く): 14047707

約数列:

[1, 3, 7, 9, 21, 63, 479, 709, 1437, 2127, 3353, 4311, 4963, 6381, 10059, 14889, 30177, 44667, 339611, 1018833, 2377277, 3056499, 7131831, 21395493]

約数ペア:

[(1, 21395493), (3, 7131831), (7, 3056499), (9, 2377277), (21, 1018833), (63, 339611), (479, 44667), (709, 30177), (1437, 14889), (2127, 10059), (3353, 6381), (4311, 4963)]