20109345

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8539}}^1$

素因数の和:8704

約数の個数: 16

約数和(自身を含む): 32383680

約数和(自身を除く): 12274335

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 8539, 25617, 42695, 128085, 1340623, 4021869, 6703115, 20109345]

約数ペア:

[(1, 20109345), (3, 6703115), (5, 4021869), (15, 1340623), (157, 128085), (471, 42695), (785, 25617), (2355, 8539)]