19970918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{823}}^1\times {\mathrm{1103}}^1$

素因数の和:1939

約数の個数: 16

約数和(自身を含む): 32749056

約数和(自身を除く): 12778138

約数列:

[1, 2, 11, 22, 823, 1103, 1646, 2206, 9053, 12133, 18106, 24266, 907769, 1815538, 9985459, 19970918]

約数ペア:

[(1, 19970918), (2, 9985459), (11, 1815538), (22, 907769), (823, 24266), (1103, 18106), (1646, 12133), (2206, 9053)]