18319540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53881}}^1$

素因数の和:53907

約数の個数: 24

約数和(自身を含む): 40734792

約数和(自身を除く): 22415252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 53881, 107762, 215524, 269405, 538810, 915977, 1077620, 1831954, 3663908, 4579885, 9159770, 18319540]

約数ペア:

[(1, 18319540), (2, 9159770), (4, 4579885), (5, 3663908), (10, 1831954), (17, 1077620), (20, 915977), (34, 538810), (68, 269405), (85, 215524), (170, 107762), (340, 53881)]