18737217

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{6871}}^1$

素因数の和:6981

約数の個数: 16

約数和(自身を含む): 28037760

約数和(自身を除く): 9300543

約数列:

[1, 3, 9, 27, 101, 303, 909, 2727, 6871, 20613, 61839, 185517, 693971, 2081913, 6245739, 18737217]

約数ペア:

[(1, 18737217), (3, 6245739), (9, 2081913), (27, 693971), (101, 185517), (303, 61839), (909, 20613), (2727, 6871)]