66840907

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{613}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 78768832

約数和(自身を除く): 11927925

約数列:

[1, 7, 37, 259, 421, 613, 2947, 4291, 15577, 22681, 109039, 158767, 258073, 1806511, 9548701, 66840907]

約数ペア:

[(1, 66840907), (7, 9548701), (37, 1806511), (259, 258073), (421, 158767), (613, 109039), (2947, 22681), (4291, 15577)]