18420237

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{569}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 30096000

約数和(自身を除く): 11675763

約数列:

[1, 3, 9, 11, 27, 33, 99, 109, 297, 327, 569, 981, 1199, 1707, 2943, 3597, 5121, 6259, 10791, 15363, 18777, 32373, 56331, 62021, 168993, 186063, 558189, 682231, 1674567, 2046693, 6140079, 18420237]

約数ペア:

[(1, 18420237), (3, 6140079), (9, 2046693), (11, 1674567), (27, 682231), (33, 558189), (99, 186063), (109, 168993), (297, 62021), (327, 56331), (569, 32373), (981, 18777), (1199, 15363), (1707, 10791), (2943, 6259), (3597, 5121)]