20120001

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 30196320

約数和(自身を除く): 10076319

約数列:

[1, 3, 11, 33, 43, 121, 129, 363, 473, 1289, 1419, 3867, 5203, 14179, 15609, 42537, 55427, 155969, 166281, 467907, 609697, 1829091, 6706667, 20120001]

約数ペア:

[(1, 20120001), (3, 6706667), (11, 1829091), (33, 609697), (43, 467907), (121, 166281), (129, 155969), (363, 55427), (473, 42537), (1289, 15609), (1419, 14179), (3867, 5203)]