20180577

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1\times {\mathrm{647}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 27775872

約数和(自身を除く): 7595295

約数列:

[1, 3, 37, 111, 281, 647, 843, 1941, 10397, 23939, 31191, 71817, 181807, 545421, 6726859, 20180577]

約数ペア:

[(1, 20180577), (3, 6726859), (37, 545421), (111, 181807), (281, 71817), (647, 31191), (843, 23939), (1941, 10397)]