21091047

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1193}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 28885248

約数和(自身を除く): 7794201

約数列:

[1, 3, 71, 83, 213, 249, 1193, 3579, 5893, 17679, 84703, 99019, 254109, 297057, 7030349, 21091047]

約数ペア:

[(1, 21091047), (3, 7030349), (71, 297057), (83, 254109), (213, 99019), (249, 84703), (1193, 17679), (3579, 5893)]