20717013

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3917}}^1$

素因数の和:4004

約数の個数: 16

約数和(自身を含む): 28961856

約数和(自身を除く): 8244843

約数列:

[1, 3, 41, 43, 123, 129, 1763, 3917, 5289, 11751, 160597, 168431, 481791, 505293, 6905671, 20717013]

約数ペア:

[(1, 20717013), (3, 6905671), (41, 505293), (43, 481791), (123, 168431), (129, 160597), (1763, 11751), (3917, 5289)]