18216328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2467}}^1$

素因数の和:2557

約数の個数: 32

約数和(自身を含む): 37316160

約数和(自身を除く): 19099832

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2467, 3692, 4934, 7384, 9868, 19736, 32071, 64142, 128284, 175157, 256568, 350314, 700628, 1401256, 2277041, 4554082, 9108164, 18216328]

約数ペア:

[(1, 18216328), (2, 9108164), (4, 4554082), (8, 2277041), (13, 1401256), (26, 700628), (52, 350314), (71, 256568), (104, 175157), (142, 128284), (284, 64142), (568, 32071), (923, 19736), (1846, 9868), (2467, 7384), (3692, 4934)]