20121802569

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{212383}}^1$

素因数の和:212443

約数の個数: 48

約数和(自身を含む): 33896486400

約数和(自身を除く): 13774683831

約数列:

[1, 3, 9, 11, 27, 29, 33, 87, 99, 121, 261, 297, 319, 363, 783, 957, 1089, 2871, 3267, 3509, 8613, 10527, 31581, 94743, 212383, 637149, 1911447, 2336213, 5734341, 6159107, 7008639, 18477321, 21025917, 25698343, 55431963, 63077751, 67750177, 77095029, 166295889, 203250531, 231285087, 609751593, 693855261, 745251947, 1829254779, 2235755841, 6707267523, 20121802569]

約数ペア:

[(1, 20121802569), (3, 6707267523), (9, 2235755841), (11, 1829254779), (27, 745251947), (29, 693855261), (33, 609751593), (87, 231285087), (99, 203250531), (121, 166295889), (261, 77095029), (297, 67750177), (319, 63077751), (363, 55431963), (783, 25698343), (957, 21025917), (1089, 18477321), (2871, 7008639), (3267, 6159107), (3509, 5734341), (8613, 2336213), (10527, 1911447), (31581, 637149), (94743, 212383)]