18838805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{883}}^1$

素因数の和:1156

約数の個数: 16

約数和(自身を含む): 24058944

約数和(自身を除く): 5220139

約数列:

[1, 5, 17, 85, 251, 883, 1255, 4267, 4415, 15011, 21335, 75055, 221633, 1108165, 3767761, 18838805]

約数ペア:

[(1, 18838805), (5, 3767761), (17, 1108165), (85, 221633), (251, 75055), (883, 21335), (1255, 15011), (4267, 4415)]