2021750781

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{81677}}^1$

素因数の和:81940

約数の個数: 16

約数和(自身を含む): 2780972544

約数和(自身を除く): 759221763

約数列:

[1, 3, 37, 111, 223, 669, 8251, 24753, 81677, 245031, 3022049, 9066147, 18213971, 54641913, 673916927, 2021750781]

約数ペア:

[(1, 2021750781), (3, 673916927), (37, 54641913), (111, 18213971), (223, 9066147), (669, 3022049), (8251, 245031), (24753, 81677)]