21139378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{17299}}^1$

素因数の和:17361

約数の個数: 16

約数和(自身を含む): 34876800

約数和(自身を除く): 13737422

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 17299, 34598, 224887, 449774, 813053, 1626106, 10569689, 21139378]

約数ペア:

[(1, 21139378), (2, 10569689), (13, 1626106), (26, 813053), (47, 449774), (94, 224887), (611, 34598), (1222, 17299)]