18042155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2707}}^1$

素因数の和:2786

約数の個数: 16

約数和(自身を含む): 22877184

約数和(自身を除く): 4835029

約数列:

[1, 5, 31, 43, 155, 215, 1333, 2707, 6665, 13535, 83917, 116401, 419585, 582005, 3608431, 18042155]

約数ペア:

[(1, 18042155), (5, 3608431), (31, 582005), (43, 419585), (155, 116401), (215, 83917), (1333, 13535), (2707, 6665)]