20158959

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^2$

素因数の和:219

約数の個数: 24

約数和(自身を含む): 28796416

約数和(自身を除く): 8637457

約数列:

[1, 3, 31, 43, 71, 93, 129, 213, 1333, 2201, 3053, 3999, 5041, 6603, 9159, 15123, 94643, 156271, 216763, 283929, 468813, 650289, 6719653, 20158959]

約数ペア:

[(1, 20158959), (3, 6719653), (31, 650289), (43, 468813), (71, 283929), (93, 216763), (129, 156271), (213, 94643), (1333, 15123), (2201, 9159), (3053, 6603), (3999, 5041)]