21027225

素因数分解:

$3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2017}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 35032480

約数和(自身を除く): 14005255

約数列:

[1, 3, 5, 15, 25, 75, 139, 417, 695, 2017, 2085, 3475, 6051, 10085, 10425, 30255, 50425, 151275, 280363, 841089, 1401815, 4205445, 7009075, 21027225]

約数ペア:

[(1, 21027225), (3, 7009075), (5, 4205445), (15, 1401815), (25, 841089), (75, 280363), (139, 151275), (417, 50425), (695, 30255), (2017, 10425), (2085, 10085), (3475, 6051)]