20081335

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{7621}}^1$

素因数の和:7674

約数の個数: 16

約数和(自身を含む): 26341632

約数和(自身を除く): 6260297

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 7621, 38105, 129557, 236251, 647785, 1181255, 4016267, 20081335]

約数ペア:

[(1, 20081335), (5, 4016267), (17, 1181255), (31, 647785), (85, 236251), (155, 129557), (527, 38105), (2635, 7621)]