20907867

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{953}}^1$

素因数の和:1130

約数の個数: 16

約数和(自身を含む): 28574208

約数和(自身を除く): 7666341

約数列:

[1, 3, 71, 103, 213, 309, 953, 2859, 7313, 21939, 67663, 98159, 202989, 294477, 6969289, 20907867]

約数ペア:

[(1, 20907867), (3, 6969289), (71, 294477), (103, 202989), (213, 98159), (309, 67663), (953, 21939), (2859, 7313)]