19919716

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{641}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 37048536

約数和(自身を除く): 17128820

約数列:

[1, 2, 4, 17, 34, 68, 457, 641, 914, 1282, 1828, 2564, 7769, 10897, 15538, 21794, 31076, 43588, 292937, 585874, 1171748, 4979929, 9959858, 19919716]

約数ペア:

[(1, 19919716), (2, 9959858), (4, 4979929), (17, 1171748), (34, 585874), (68, 292937), (457, 43588), (641, 31076), (914, 21794), (1282, 15538), (1828, 10897), (2564, 7769)]