18397790

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4153}}^1$

素因数の和:4603

約数の個数: 16

約数和(自身を含む): 33198768

約数和(自身を除く): 14800978

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4153, 4430, 8306, 20765, 41530, 1839779, 3679558, 9198895, 18397790]

約数ペア:

[(1, 18397790), (2, 9198895), (5, 3679558), (10, 1839779), (443, 41530), (886, 20765), (2215, 8306), (4153, 4430)]