18805405

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1861}}^1$

素因数の和:1956

約数の個数: 16

約数和(自身を含む): 23595264

約数和(自身を除く): 4789859

約数列:

[1, 5, 43, 47, 215, 235, 1861, 2021, 9305, 10105, 80023, 87467, 400115, 437335, 3761081, 18805405]

約数ペア:

[(1, 18805405), (5, 3761081), (43, 437335), (47, 400115), (215, 87467), (235, 80023), (1861, 10105), (2021, 9305)]