7977489

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 12063744

約数和(自身を除く): 4086255

約数列:

[1, 3, 13, 39, 43, 67, 71, 129, 201, 213, 559, 871, 923, 1677, 2613, 2769, 2881, 3053, 4757, 8643, 9159, 14271, 37453, 39689, 61841, 112359, 119067, 185523, 204551, 613653, 2659163, 7977489]

約数ペア:

[(1, 7977489), (3, 2659163), (13, 613653), (39, 204551), (43, 185523), (67, 119067), (71, 112359), (129, 61841), (201, 39689), (213, 37453), (559, 14271), (871, 9159), (923, 8643), (1677, 4757), (2613, 3053), (2769, 2881)]