21588905

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:941

約数の個数: 24

約数和(自身を含む): 29053080

約数和(自身を除く): 7464175

約数列:

[1, 5, 13, 29, 65, 145, 169, 377, 845, 881, 1885, 4405, 4901, 11453, 24505, 25549, 57265, 127745, 148889, 332137, 744445, 1660685, 4317781, 21588905]

約数ペア:

[(1, 21588905), (5, 4317781), (13, 1660685), (29, 744445), (65, 332137), (145, 148889), (169, 127745), (377, 57265), (845, 25549), (881, 24505), (1885, 11453), (4405, 4901)]