12996905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1181}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 16339968

約数和(自身を除く): 3343063

約数列:

[1, 5, 31, 71, 155, 355, 1181, 2201, 5905, 11005, 36611, 83851, 183055, 419255, 2599381, 12996905]

約数ペア:

[(1, 12996905), (5, 2599381), (31, 419255), (71, 183055), (155, 83851), (355, 36611), (1181, 11005), (2201, 5905)]