20811986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1\times {\mathrm{1129}}^1$

素因数の和:1853

約数の個数: 16

約数和(自身を含む): 33696600

約数和(自身を除く): 12884614

約数列:

[1, 2, 13, 26, 709, 1129, 1418, 2258, 9217, 14677, 18434, 29354, 800461, 1600922, 10405993, 20811986]

約数ペア:

[(1, 20811986), (2, 10405993), (13, 1600922), (26, 800461), (709, 29354), (1129, 18434), (1418, 14677), (2258, 9217)]