18016785

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9311}}^1$

素因数の和:9365

約数の個数: 24

約数和(自身を含む): 31958784

約数和(自身を除く): 13941999

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9311, 27933, 46555, 83799, 139665, 400373, 418995, 1201119, 2001865, 3603357, 6005595, 18016785]

約数ペア:

[(1, 18016785), (3, 6005595), (5, 3603357), (9, 2001865), (15, 1201119), (43, 418995), (45, 400373), (129, 139665), (215, 83799), (387, 46555), (645, 27933), (1935, 9311)]