18209385

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3581}}^1$

素因数の和:3705

約数の個数: 24

約数和(自身を含む): 31851144

約数和(自身を除く): 13641759

約数列:

[1, 3, 5, 9, 15, 45, 113, 339, 565, 1017, 1695, 3581, 5085, 10743, 17905, 32229, 53715, 161145, 404653, 1213959, 2023265, 3641877, 6069795, 18209385]

約数ペア:

[(1, 18209385), (3, 6069795), (5, 3641877), (9, 2023265), (15, 1213959), (45, 404653), (113, 161145), (339, 53715), (565, 32229), (1017, 17905), (1695, 10743), (3581, 5085)]