20471031

素因数分解:

$3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1109}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 33939360

約数和(自身を除く): 13468329

約数列:

[1, 3, 7, 9, 21, 63, 293, 879, 1109, 2051, 2637, 3327, 6153, 7763, 9981, 18459, 23289, 69867, 324937, 974811, 2274559, 2924433, 6823677, 20471031]

約数ペア:

[(1, 20471031), (3, 6823677), (7, 2924433), (9, 2274559), (21, 974811), (63, 324937), (293, 69867), (879, 23289), (1109, 18459), (2051, 9981), (2637, 7763), (3327, 6153)]