20771505

素因数分解:

$3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{613}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 37134720

約数和(自身を除く): 16363215

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 251, 613, 753, 1255, 1839, 2259, 3065, 3765, 5517, 6777, 9195, 11295, 16551, 27585, 33885, 82755, 153863, 461589, 769315, 1384767, 2307945, 4154301, 6923835, 20771505]

約数ペア:

[(1, 20771505), (3, 6923835), (5, 4154301), (9, 2307945), (15, 1384767), (27, 769315), (45, 461589), (135, 153863), (251, 82755), (613, 33885), (753, 27585), (1255, 16551), (1839, 11295), (2259, 9195), (3065, 6777), (3765, 5517)]