12741715

素因数分解:

$5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 17967312

約数和(自身を除く): 5225597

約数列:

[1, 5, 7, 35, 49, 131, 245, 397, 655, 917, 1985, 2779, 4585, 6419, 13895, 19453, 32095, 52007, 97265, 260035, 364049, 1820245, 2548343, 12741715]

約数ペア:

[(1, 12741715), (5, 2548343), (7, 1820245), (35, 364049), (49, 260035), (131, 97265), (245, 52007), (397, 32095), (655, 19453), (917, 13895), (1985, 6419), (2779, 4585)]