12128895

素因数分解:

$3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{659}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 21106800

約数和(自身を除く): 8977905

約数列:

[1, 3, 5, 9, 15, 45, 409, 659, 1227, 1977, 2045, 3295, 3681, 5931, 6135, 9885, 18405, 29655, 269531, 808593, 1347655, 2425779, 4042965, 12128895]

約数ペア:

[(1, 12128895), (3, 4042965), (5, 2425779), (9, 1347655), (15, 808593), (45, 269531), (409, 29655), (659, 18405), (1227, 9885), (1977, 6135), (2045, 5931), (3295, 3681)]