18128943

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3467}}^1$

素因数の和:3563

約数の個数: 24

約数和(自身を含む): 30296448

約数和(自身を除く): 12167505

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 3467, 5229, 10401, 24269, 31203, 72807, 218421, 287761, 863283, 2014327, 2589849, 6042981, 18128943]

約数ペア:

[(1, 18128943), (3, 6042981), (7, 2589849), (9, 2014327), (21, 863283), (63, 287761), (83, 218421), (249, 72807), (581, 31203), (747, 24269), (1743, 10401), (3467, 5229)]