31242771

素因数分解:

$3^2\times 7^1\times {\mathrm{613}}^1\times {\mathrm{809}}^1$

素因数の和:1435

約数の個数: 24

約数和(自身を含む): 51723360

約数和(自身を除く): 20480589

約数列:

[1, 3, 7, 9, 21, 63, 613, 809, 1839, 2427, 4291, 5517, 5663, 7281, 12873, 16989, 38619, 50967, 495917, 1487751, 3471419, 4463253, 10414257, 31242771]

約数ペア:

[(1, 31242771), (3, 10414257), (7, 4463253), (9, 3471419), (21, 1487751), (63, 495917), (613, 50967), (809, 38619), (1839, 16989), (2427, 12873), (4291, 7281), (5517, 5663)]