1280821707

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{79}}^2\times {\mathrm{691}}^1$

素因数の和:869

約数の個数: 48

約数和(自身を含む): 2099583360

約数和(自身を除く): 818761653

約数列:

[1, 3, 9, 11, 27, 33, 79, 99, 237, 297, 691, 711, 869, 2073, 2133, 2607, 6219, 6241, 7601, 7821, 18657, 18723, 22803, 23463, 54589, 56169, 68409, 68651, 163767, 168507, 205227, 205953, 491301, 600479, 617859, 1473903, 1801437, 1853577, 4312531, 5404311, 12937593, 16212933, 38812779, 47437841, 116438337, 142313523, 426940569, 1280821707]

約数ペア:

[(1, 1280821707), (3, 426940569), (9, 142313523), (11, 116438337), (27, 47437841), (33, 38812779), (79, 16212933), (99, 12937593), (237, 5404311), (297, 4312531), (691, 1853577), (711, 1801437), (869, 1473903), (2073, 617859), (2133, 600479), (2607, 491301), (6219, 205953), (6241, 205227), (7601, 168507), (7821, 163767), (18657, 68651), (18723, 68409), (22803, 56169), (23463, 54589)]