19864559

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2621}}^1$

素因数の和:2698

約数の個数: 16

約数和(自身を含む): 23786784

約数和(自身を除く): 3922225

約数列:

[1, 11, 13, 53, 143, 583, 689, 2621, 7579, 28831, 34073, 138913, 374803, 1528043, 1805869, 19864559]

約数ペア:

[(1, 19864559), (11, 1805869), (13, 1528043), (53, 374803), (143, 138913), (583, 34073), (689, 28831), (2621, 7579)]