20965724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{13903}}^1$

素因数の和:13949

約数の個数: 24

約数和(自身を含む): 40877760

約数和(自身を除く): 19912036

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 13903, 27806, 55612, 180739, 361478, 403187, 722956, 806374, 1612748, 5241431, 10482862, 20965724]

約数ペア:

[(1, 20965724), (2, 10482862), (4, 5241431), (13, 1612748), (26, 806374), (29, 722956), (52, 403187), (58, 361478), (116, 180739), (377, 55612), (754, 27806), (1508, 13903)]