18475990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{142123}}^1$

素因数の和:142143

約数の個数: 16

約数和(自身を含む): 35815248

約数和(自身を除く): 17339258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 142123, 284246, 710615, 1421230, 1847599, 3695198, 9237995, 18475990]

約数ペア:

[(1, 18475990), (2, 9237995), (5, 3695198), (10, 1847599), (13, 1421230), (26, 710615), (65, 284246), (130, 142123)]