20811669

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^2$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 30123360

約数和(自身を除く): 9311691

約数列:

[1, 3, 19, 53, 57, 83, 159, 249, 1007, 1577, 3021, 4399, 4731, 6889, 13197, 20667, 83581, 130891, 250743, 365117, 392673, 1095351, 6937223, 20811669]

約数ペア:

[(1, 20811669), (3, 6937223), (19, 1095351), (53, 392673), (57, 365117), (83, 250743), (159, 130891), (249, 83581), (1007, 20667), (1577, 13197), (3021, 6889), (4399, 4731)]