20156543

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 3974977

約数列:

[1, 11, 17, 41, 121, 187, 239, 451, 697, 2057, 2629, 4063, 4961, 7667, 9799, 28919, 44693, 84337, 107789, 166583, 491623, 1185679, 1832413, 20156543]

約数ペア:

[(1, 20156543), (11, 1832413), (17, 1185679), (41, 491623), (121, 166583), (187, 107789), (239, 84337), (451, 44693), (697, 28919), (2057, 9799), (2629, 7667), (4063, 4961)]