19988373

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:596

約数の個数: 16

約数和(自身を含む): 27099072

約数和(自身を除く): 7110699

約数列:

[1, 3, 131, 181, 281, 393, 543, 843, 23711, 36811, 50861, 71133, 110433, 152583, 6662791, 19988373]

約数ペア:

[(1, 19988373), (3, 6662791), (131, 152583), (181, 110433), (281, 71133), (393, 50861), (543, 36811), (843, 23711)]