19817830

素因数分解:

$2^1\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1787}}^1$

素因数の和:2903

約数の個数: 16

約数和(自身を含む): 35724240

約数和(自身を除く): 15906410

約数列:

[1, 2, 5, 10, 1109, 1787, 2218, 3574, 5545, 8935, 11090, 17870, 1981783, 3963566, 9908915, 19817830]

約数ペア:

[(1, 19817830), (2, 9908915), (5, 3963566), (10, 1981783), (1109, 17870), (1787, 11090), (2218, 8935), (3574, 5545)]