20198619

素因数分解:

$3^3\times 7^1\times {\mathrm{106871}}^1$

素因数の和:106887

約数の個数: 16

約数和(自身を含む): 34199040

約数和(自身を除く): 14000421

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 106871, 320613, 748097, 961839, 2244291, 2885517, 6732873, 20198619]

約数ペア:

[(1, 20198619), (3, 6732873), (7, 2885517), (9, 2244291), (21, 961839), (27, 748097), (63, 320613), (189, 106871)]