66784697

素因数分解:

$7^2\times {\mathrm{47}}^2\times {\mathrm{617}}^1$

素因数の和:725

約数の個数: 18

約数和(自身を含む): 79505082

約数和(自身を除く): 12720385

約数列:

[1, 7, 47, 49, 329, 617, 2209, 2303, 4319, 15463, 28999, 30233, 108241, 202993, 1362953, 1420951, 9540671, 66784697]

約数ペア:

[(1, 66784697), (7, 9540671), (47, 1420951), (49, 1362953), (329, 202993), (617, 108241), (2209, 30233), (2303, 28999), (4319, 15463)]