18667209

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4129}}^1$

素因数の和:4280

約数の個数: 16

約数和(自身を含む): 27357120

約数和(自身を除く): 8689911

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4129, 4521, 12387, 45419, 136257, 565673, 1697019, 6222403, 18667209]

約数ペア:

[(1, 18667209), (3, 6222403), (11, 1697019), (33, 565673), (137, 136257), (411, 45419), (1507, 12387), (4129, 4521)]