18396860

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{13729}}^1$

素因数の和:13805

約数の個数: 24

約数和(自身を含む): 39212880

約数和(自身を除く): 20816020

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 13729, 27458, 54916, 68645, 137290, 274580, 919843, 1839686, 3679372, 4599215, 9198430, 18396860]

約数ペア:

[(1, 18396860), (2, 9198430), (4, 4599215), (5, 3679372), (10, 1839686), (20, 919843), (67, 274580), (134, 137290), (268, 68645), (335, 54916), (670, 27458), (1340, 13729)]