19541988

素因数分解:

$2^2\times 3^2\times {\mathrm{647}}^1\times {\mathrm{839}}^1$

素因数の和:1496

約数の個数: 36

約数和(自身を含む): 49533120

約数和(自身を除く): 29991132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 647, 839, 1294, 1678, 1941, 2517, 2588, 3356, 3882, 5034, 5823, 7551, 7764, 10068, 11646, 15102, 23292, 30204, 542833, 1085666, 1628499, 2171332, 3256998, 4885497, 6513996, 9770994, 19541988]

約数ペア:

[(1, 19541988), (2, 9770994), (3, 6513996), (4, 4885497), (6, 3256998), (9, 2171332), (12, 1628499), (18, 1085666), (36, 542833), (647, 30204), (839, 23292), (1294, 15102), (1678, 11646), (1941, 10068), (2517, 7764), (2588, 7551), (3356, 5823), (3882, 5034)]