21066087

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 12641433

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 287, 301, 569, 861, 903, 1707, 1763, 3983, 5289, 11949, 12341, 23329, 24467, 37023, 69987, 73401, 163303, 171269, 489909, 513807, 1003147, 3009441, 7022029, 21066087]

約数ペア:

[(1, 21066087), (3, 7022029), (7, 3009441), (21, 1003147), (41, 513807), (43, 489909), (123, 171269), (129, 163303), (287, 73401), (301, 69987), (569, 37023), (861, 24467), (903, 23329), (1707, 12341), (1763, 11949), (3983, 5289)]