20199783891

素因数分解:

$3^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{1455211}}^1$

素因数の和:1455882

約数の個数: 16

約数和(自身を含む): 30827211008

約数和(自身を除く): 10627427117

約数列:

[1, 3, 7, 21, 661, 1983, 4627, 13881, 1455211, 4365633, 10186477, 30559431, 961894471, 2885683413, 6733261297, 20199783891]

約数ペア:

[(1, 20199783891), (3, 6733261297), (7, 2885683413), (21, 961894471), (661, 30559431), (1983, 10186477), (4627, 4365633), (13881, 1455211)]