19981702

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{20771}}^1$

素因数の和:20823

約数の個数: 16

約数和(自身を含む): 33152112

約数和(自身を除く): 13170410

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 20771, 41542, 270023, 540046, 768527, 1537054, 9990851, 19981702]

約数ペア:

[(1, 19981702), (2, 9990851), (13, 1537054), (26, 768527), (37, 540046), (74, 270023), (481, 41542), (962, 20771)]