21126357

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8179}}^1$

素因数の和:8233

約数の個数: 24

約数和(自身を含む): 35730240

約数和(自身を除く): 14603883

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8179, 24537, 57253, 73611, 171759, 335339, 515277, 1006017, 2347373, 3018051, 7042119, 21126357]

約数ペア:

[(1, 21126357), (3, 7042119), (7, 3018051), (9, 2347373), (21, 1006017), (41, 515277), (63, 335339), (123, 171759), (287, 73611), (369, 57253), (861, 24537), (2583, 8179)]