20804085111

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1\times {\mathrm{161471}}^1$

素因数の和:162182

約数の個数: 16

約数和(自身を含む): 28196886528

約数和(自身を除く): 7392801417

約数列:

[1, 3, 67, 201, 641, 1923, 42947, 128841, 161471, 484413, 10818557, 32455671, 103502911, 310508733, 6934695037, 20804085111]

約数ペア:

[(1, 20804085111), (3, 6934695037), (67, 310508733), (201, 103502911), (641, 32455671), (1923, 10818557), (42947, 484413), (128841, 161471)]