21251649

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5869}}^1$

素因数の和:5960

約数の個数: 16

約数和(自身を含む): 30430080

約数和(自身を除く): 9178431

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5869, 17607, 99773, 299319, 416699, 1250097, 7083883, 21251649]

約数ペア:

[(1, 21251649), (3, 7083883), (17, 1250097), (51, 416699), (71, 299319), (213, 99773), (1207, 17607), (3621, 5869)]