20171619

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{569}}^1$

素因数の和:692

約数の個数: 32

約数和(自身を含む): 32558400

約数和(自身を除く): 12386781

約数列:

[1, 3, 9, 13, 27, 39, 101, 117, 303, 351, 569, 909, 1313, 1707, 2727, 3939, 5121, 7397, 11817, 15363, 22191, 35451, 57469, 66573, 172407, 199719, 517221, 747097, 1551663, 2241291, 6723873, 20171619]

約数ペア:

[(1, 20171619), (3, 6723873), (9, 2241291), (13, 1551663), (27, 747097), (39, 517221), (101, 199719), (117, 172407), (303, 66573), (351, 57469), (569, 35451), (909, 22191), (1313, 15363), (1707, 11817), (2727, 7397), (3939, 5121)]