21068210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72649}}^1$

素因数の和:72685

約数の個数: 16

約数和(自身を含む): 39231000

約数和(自身を除く): 18162790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72649, 145298, 363245, 726490, 2106821, 4213642, 10534105, 21068210]

約数ペア:

[(1, 21068210), (2, 10534105), (5, 4213642), (10, 2106821), (29, 726490), (58, 363245), (145, 145298), (290, 72649)]