18009747

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{587}}^1$

素因数の和:1087

約数の個数: 24

約数和(自身を含む): 29842176

約数和(自身を除く): 11832429

約数列:

[1, 3, 7, 9, 21, 63, 487, 587, 1461, 1761, 3409, 4109, 4383, 5283, 10227, 12327, 30681, 36981, 285869, 857607, 2001083, 2572821, 6003249, 18009747]

約数ペア:

[(1, 18009747), (3, 6003249), (7, 2572821), (9, 2001083), (21, 857607), (63, 285869), (487, 36981), (587, 30681), (1461, 12327), (1761, 10227), (3409, 5283), (4109, 4383)]