31720473

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{523}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 48065472

約数和(自身を除く): 16344999

約数列:

[1, 3, 9, 23, 69, 207, 293, 523, 879, 1569, 2637, 4707, 6739, 12029, 20217, 36087, 60651, 108261, 153239, 459717, 1379151, 3524497, 10573491, 31720473]

約数ペア:

[(1, 31720473), (3, 10573491), (9, 3524497), (23, 1379151), (69, 459717), (207, 153239), (293, 108261), (523, 60651), (879, 36087), (1569, 20217), (2637, 12029), (4707, 6739)]