2786679

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 4801680

約数和(自身を除く): 2015001

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 89, 147, 213, 267, 441, 497, 623, 639, 801, 1491, 1869, 3479, 4361, 4473, 5607, 6319, 10437, 13083, 18957, 31311, 39249, 44233, 56871, 132699, 309631, 398097, 928893, 2786679]

約数ペア:

[(1, 2786679), (3, 928893), (7, 398097), (9, 309631), (21, 132699), (49, 56871), (63, 44233), (71, 39249), (89, 31311), (147, 18957), (213, 13083), (267, 10437), (441, 6319), (497, 5607), (623, 4473), (639, 4361), (801, 3479), (1491, 1869)]