20178867

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{1693}}^1$

素因数の和:1862

約数の個数: 16

約数和(自身を含む): 28052640

約数和(自身を除く): 7873773

約数列:

[1, 3, 29, 87, 137, 411, 1693, 3973, 5079, 11919, 49097, 147291, 231941, 695823, 6726289, 20178867]

約数ペア:

[(1, 20178867), (3, 6726289), (29, 695823), (87, 231941), (137, 147291), (411, 49097), (1693, 11919), (3973, 5079)]