21581314

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{2621}}^1$

素因数の和:2825

約数の個数: 16

約数和(自身を含む): 33981120

約数和(自身を除く): 12399806

約数列:

[1, 2, 23, 46, 179, 358, 2621, 4117, 5242, 8234, 60283, 120566, 469159, 938318, 10790657, 21581314]

約数ペア:

[(1, 21581314), (2, 10790657), (23, 938318), (46, 469159), (179, 120566), (358, 60283), (2621, 8234), (4117, 5242)]