20395005

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5417}}^1$

素因数の和:5676

約数の個数: 16

約数和(自身を含む): 32768064

約数和(自身を除く): 12373059

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 5417, 16251, 27085, 81255, 1359667, 4079001, 6798335, 20395005]

約数ペア:

[(1, 20395005), (3, 6798335), (5, 4079001), (15, 1359667), (251, 81255), (753, 27085), (1255, 16251), (3765, 5417)]