18931540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55681}}^1$

素因数の和:55707

約数の個数: 24

約数和(自身を含む): 42095592

約数和(自身を除く): 23164052

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55681, 111362, 222724, 278405, 556810, 946577, 1113620, 1893154, 3786308, 4732885, 9465770, 18931540]

約数ペア:

[(1, 18931540), (2, 9465770), (4, 4732885), (5, 3786308), (10, 1893154), (17, 1113620), (20, 946577), (34, 556810), (68, 278405), (85, 222724), (170, 111362), (340, 55681)]