19140237

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{2213}}^1$

素因数の和:2281

約数の個数: 18

約数和(自身を含む): 28580526

約数和(自身を除く): 9440289

約数列:

[1, 3, 9, 31, 93, 279, 961, 2213, 2883, 6639, 8649, 19917, 68603, 205809, 617427, 2126693, 6380079, 19140237]

約数ペア:

[(1, 19140237), (3, 6380079), (9, 2126693), (31, 617427), (93, 205809), (279, 68603), (961, 19917), (2213, 8649), (2883, 6639)]