40020421

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{809}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 47278080

約数和(自身を除く): 7257659

約数列:

[1, 7, 37, 191, 259, 809, 1337, 5663, 7067, 29933, 49469, 154519, 209531, 1081633, 5717203, 40020421]

約数ペア:

[(1, 40020421), (7, 5717203), (37, 1081633), (191, 209531), (259, 154519), (809, 49469), (1337, 29933), (5663, 7067)]