21319617

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{5087}}^1$

素因数の和:5228

約数の個数: 16

約数和(自身を含む): 31260672

約数和(自身を除く): 9941055

約数列:

[1, 3, 11, 33, 127, 381, 1397, 4191, 5087, 15261, 55957, 167871, 646049, 1938147, 7106539, 21319617]

約数ペア:

[(1, 21319617), (3, 7106539), (11, 1938147), (33, 646049), (127, 167871), (381, 55957), (1397, 15261), (4191, 5087)]