1247421

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{311}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 1916928

約数和(自身を除く): 669507

約数列:

[1, 3, 7, 21, 191, 311, 573, 933, 1337, 2177, 4011, 6531, 59401, 178203, 415807, 1247421]

約数ペア:

[(1, 1247421), (3, 415807), (7, 178203), (21, 59401), (191, 6531), (311, 4011), (573, 2177), (933, 1337)]