19986837

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{7649}}^1$

素因数の和:7732

約数の個数: 16

約数和(自身を含む): 29131200

約数和(自身を除く): 9144363

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 7649, 22947, 99437, 298311, 512483, 1537449, 6662279, 19986837]

約数ペア:

[(1, 19986837), (3, 6662279), (13, 1537449), (39, 512483), (67, 298311), (201, 99437), (871, 22947), (2613, 7649)]