31720359

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 48109824

約数和(自身を除く): 16389465

約数列:

[1, 3, 11, 33, 37, 83, 111, 249, 313, 407, 913, 939, 1221, 2739, 3071, 3443, 9213, 10329, 11581, 25979, 33781, 34743, 77937, 101343, 127391, 285769, 382173, 857307, 961223, 2883669, 10573453, 31720359]

約数ペア:

[(1, 31720359), (3, 10573453), (11, 2883669), (33, 961223), (37, 857307), (83, 382173), (111, 285769), (249, 127391), (313, 101343), (407, 77937), (913, 34743), (939, 33781), (1221, 25979), (2739, 11581), (3071, 10329), (3443, 9213)]