12820605

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17443}}^1$

素因数の和:17465

約数の個数: 24

約数和(自身を含む): 23863392

約数和(自身を除く): 11042787

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 17443, 52329, 87215, 122101, 261645, 366303, 610505, 854707, 1831515, 2564121, 4273535, 12820605]

約数ペア:

[(1, 12820605), (3, 4273535), (5, 2564121), (7, 1831515), (15, 854707), (21, 610505), (35, 366303), (49, 261645), (105, 122101), (147, 87215), (245, 52329), (735, 17443)]