21081470

素因数分解:

$2^1\times 5^1\times {\mathrm{829}}^1\times {\mathrm{2543}}^1$

素因数の和:3379

約数の個数: 16

約数和(自身を含む): 38007360

約数和(自身を除く): 16925890

約数列:

[1, 2, 5, 10, 829, 1658, 2543, 4145, 5086, 8290, 12715, 25430, 2108147, 4216294, 10540735, 21081470]

約数ペア:

[(1, 21081470), (2, 10540735), (5, 4216294), (10, 2108147), (829, 25430), (1658, 12715), (2543, 8290), (4145, 5086)]