19812226

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10181}}^1$

素因数の和:10329

約数の個数: 16

約数和(自身を含む): 34211520

約数和(自身を除く): 14399294

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10181, 20362, 71267, 142534, 1415159, 2830318, 9906113, 19812226]

約数ペア:

[(1, 19812226), (2, 9906113), (7, 2830318), (14, 1415159), (139, 142534), (278, 71267), (973, 20362), (1946, 10181)]