20118765

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8543}}^1$

素因数の和:8708

約数の個数: 16

約数和(自身を含む): 32398848

約数和(自身を除く): 12280083

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 8543, 25629, 42715, 128145, 1341251, 4023753, 6706255, 20118765]

約数ペア:

[(1, 20118765), (3, 6706255), (5, 4023753), (15, 1341251), (157, 128145), (471, 42715), (785, 25629), (2355, 8543)]