20125971909

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{916859}}^1$

素因数の和:917142

約数の個数: 20

約数和(自身を含む): 30175696320

約数和(自身を除く): 10049724411

約数列:

[1, 3, 9, 27, 81, 271, 813, 2439, 7317, 21951, 916859, 2750577, 8251731, 24755193, 74265579, 248468789, 745406367, 2236219101, 6708657303, 20125971909]

約数ペア:

[(1, 20125971909), (3, 6708657303), (9, 2236219101), (27, 745406367), (81, 248468789), (271, 74265579), (813, 24755193), (2439, 8251731), (7317, 2750577), (21951, 916859)]