18217965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71443}}^1$

素因数の和:71468

約数の個数: 16

約数和(自身を含む): 30863808

約数和(自身を除く): 12645843

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 71443, 214329, 357215, 1071645, 1214531, 3643593, 6072655, 18217965]

約数ペア:

[(1, 18217965), (3, 6072655), (5, 3643593), (15, 1214531), (17, 1071645), (51, 357215), (85, 214329), (255, 71443)]