8640558

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{6761}}^1$

素因数の和:6840

約数の個数: 24

約数和(自身を含む): 18987696

約数和(自身を除く): 10347138

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 6761, 13522, 20283, 40566, 60849, 121698, 480031, 960062, 1440093, 2880186, 4320279, 8640558]

約数ペア:

[(1, 8640558), (2, 4320279), (3, 2880186), (6, 1440093), (9, 960062), (18, 480031), (71, 121698), (142, 60849), (213, 40566), (426, 20283), (639, 13522), (1278, 6761)]