51921387

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{7561}}^1$

素因数の和:7683

約数の個数: 24

約数和(自身を含む): 86509280

約数和(自身を除く): 34587893

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 6867, 7561, 22683, 52927, 68049, 158781, 476343, 824149, 2472447, 5769043, 7417341, 17307129, 51921387]

約数ペア:

[(1, 51921387), (3, 17307129), (7, 7417341), (9, 5769043), (21, 2472447), (63, 824149), (109, 476343), (327, 158781), (763, 68049), (981, 52927), (2289, 22683), (6867, 7561)]