20081621

素因数分解:

$7^3\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:609

約数の個数: 16

約数和(自身を含む): 23654400

約数和(自身を除く): 3572779

約数列:

[1, 7, 49, 127, 343, 461, 889, 3227, 6223, 22589, 43561, 58547, 158123, 409829, 2868803, 20081621]

約数ペア:

[(1, 20081621), (7, 2868803), (49, 409829), (127, 158123), (343, 58547), (461, 43561), (889, 22589), (3227, 6223)]