20739129

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:1024

約数の個数: 16

約数和(自身を含む): 28549248

約数和(自身を除く): 7810119

約数列:

[1, 3, 37, 111, 257, 727, 771, 2181, 9509, 26899, 28527, 80697, 186839, 560517, 6913043, 20739129]

約数ペア:

[(1, 20739129), (3, 6913043), (37, 560517), (111, 186839), (257, 80697), (727, 28527), (771, 26899), (2181, 9509)]