19978937

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{877}}^1$

素因数の和:1016

約数の個数: 16

約数和(自身を含む): 23179200

約数和(自身を除く): 3200263

約数列:

[1, 11, 19, 109, 209, 877, 1199, 2071, 9647, 16663, 22781, 95593, 183293, 1051523, 1816267, 19978937]

約数ペア:

[(1, 19978937), (11, 1816267), (19, 1051523), (109, 183293), (209, 95593), (877, 22781), (1199, 16663), (2071, 9647)]