3967551

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:971

約数の個数: 24

約数和(自身を含む): 6649344

約数和(自身を除く): 2681793

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 887, 1491, 2661, 4473, 6209, 7983, 18627, 55881, 62977, 188931, 440839, 566793, 1322517, 3967551]

約数ペア:

[(1, 3967551), (3, 1322517), (7, 566793), (9, 440839), (21, 188931), (63, 62977), (71, 55881), (213, 18627), (497, 7983), (639, 6209), (887, 4473), (1491, 2661)]