18721930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{110129}}^1$

素因数の和:110153

約数の個数: 16

約数和(自身を含む): 35682120

約数和(自身を除く): 16960190

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 110129, 220258, 550645, 1101290, 1872193, 3744386, 9360965, 18721930]

約数ペア:

[(1, 18721930), (2, 9360965), (5, 3744386), (10, 1872193), (17, 1101290), (34, 550645), (85, 220258), (170, 110129)]