21719181

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{6151}}^1$

素因数の和:6272

約数の個数: 16

約数和(自身を含む): 31891968

約数和(自身を除く): 10172787

約数列:

[1, 3, 11, 33, 107, 321, 1177, 3531, 6151, 18453, 67661, 202983, 658157, 1974471, 7239727, 21719181]

約数ペア:

[(1, 21719181), (3, 7239727), (11, 1974471), (33, 658157), (107, 202983), (321, 67661), (1177, 18453), (3531, 6151)]