8219457

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 12692160

約数和(自身を除く): 4472703

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 677, 1349, 2031, 4047, 6093, 12141, 12863, 38589, 48067, 115767, 144201, 432603, 913273, 2739819, 8219457]

約数ペア:

[(1, 8219457), (3, 2739819), (9, 913273), (19, 432603), (57, 144201), (71, 115767), (171, 48067), (213, 38589), (639, 12863), (677, 12141), (1349, 6093), (2031, 4047)]