17980263

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6961}}^1$

素因数の和:7015

約数の個数: 24

約数和(自身を含む): 30410016

約数和(自身を除く): 12429753

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 6961, 20883, 48727, 62649, 146181, 285401, 438543, 856203, 1997807, 2568609, 5993421, 17980263]

約数ペア:

[(1, 17980263), (3, 5993421), (7, 2568609), (9, 1997807), (21, 856203), (41, 438543), (63, 285401), (123, 146181), (287, 62649), (369, 48727), (861, 20883), (2583, 6961)]