28747797

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^2\times {\mathrm{107}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 42172704

約数和(自身を除く): 13424907

約数列:

[1, 3, 13, 39, 83, 107, 249, 321, 1079, 1391, 3237, 4173, 6889, 8881, 20667, 26643, 89557, 115453, 268671, 346359, 737123, 2211369, 9582599, 28747797]

約数ペア:

[(1, 28747797), (3, 9582599), (13, 2211369), (39, 737123), (83, 346359), (107, 268671), (249, 115453), (321, 89557), (1079, 26643), (1391, 20667), (3237, 8881), (4173, 6889)]