21034615

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{673}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 31057920

約数和(自身を除く): 10023305

約数列:

[1, 5, 7, 19, 35, 47, 95, 133, 235, 329, 665, 673, 893, 1645, 3365, 4465, 4711, 6251, 12787, 23555, 31255, 31631, 63935, 89509, 158155, 221417, 447545, 600989, 1107085, 3004945, 4206923, 21034615]

約数ペア:

[(1, 21034615), (5, 4206923), (7, 3004945), (19, 1107085), (35, 600989), (47, 447545), (95, 221417), (133, 158155), (235, 89509), (329, 63935), (665, 31631), (673, 31255), (893, 23555), (1645, 12787), (3365, 6251), (4465, 4711)]