21552839

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6827}}^1$

素因数の和:6886

約数の個数: 16

約数和(自身を含む): 27530496

約数和(自身を除く): 5977657

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6827, 47789, 75097, 279907, 525679, 1959349, 3078977, 21552839]

約数ペア:

[(1, 21552839), (7, 3078977), (11, 1959349), (41, 525679), (77, 279907), (287, 75097), (451, 47789), (3157, 6827)]