19967882

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{11489}}^1$

素因数の和:11581

約数の個数: 16

約数和(自身を含む): 33091200

約数和(自身を除く): 13123318

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 11489, 22978, 126379, 252758, 907631, 1815262, 9983941, 19967882]

約数ペア:

[(1, 19967882), (2, 9983941), (11, 1815262), (22, 907631), (79, 252758), (158, 126379), (869, 22978), (1738, 11489)]