18790011

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2111}}^1$

素因数の和:2183

約数の個数: 24

約数和(自身を含む): 28993536

約数和(自身を除く): 10203525

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2111, 2967, 6333, 8901, 18999, 48553, 90773, 145659, 272319, 436977, 816957, 2087779, 6263337, 18790011]

約数ペア:

[(1, 18790011), (3, 6263337), (9, 2087779), (23, 816957), (43, 436977), (69, 272319), (129, 145659), (207, 90773), (387, 48553), (989, 18999), (2111, 8901), (2967, 6333)]