19962891

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1759}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 31391360

約数和(自身を除く): 11428469

約数列:

[1, 3, 9, 13, 39, 97, 117, 291, 873, 1261, 1759, 3783, 5277, 11349, 15831, 22867, 68601, 170623, 205803, 511869, 1535607, 2218099, 6654297, 19962891]

約数ペア:

[(1, 19962891), (3, 6654297), (9, 2218099), (13, 1535607), (39, 511869), (97, 205803), (117, 170623), (291, 68601), (873, 22867), (1261, 15831), (1759, 11349), (3783, 5277)]