19954907

素因数分解:

$7^2\times {\mathrm{449}}^1\times {\mathrm{907}}^1$

素因数の和:1370

約数の個数: 12

約数和(自身を含む): 23290200

約数和(自身を除く): 3335293

約数列:

[1, 7, 49, 449, 907, 3143, 6349, 22001, 44443, 407243, 2850701, 19954907]

約数ペア:

[(1, 19954907), (7, 2850701), (49, 407243), (449, 44443), (907, 22001), (3143, 6349)]