12680895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^2$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 21579696

約数和(自身を除く): 8898801

約数列:

[1, 3, 5, 15, 17, 51, 85, 223, 255, 669, 1115, 3345, 3791, 11373, 18955, 49729, 56865, 149187, 248645, 745935, 845393, 2536179, 4226965, 12680895]

約数ペア:

[(1, 12680895), (3, 4226965), (5, 2536179), (15, 845393), (17, 745935), (51, 248645), (85, 149187), (223, 56865), (255, 49729), (669, 18955), (1115, 11373), (3345, 3791)]