21382697

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 25239552

約数和(自身を除く): 3856855

約数列:

[1, 7, 47, 103, 329, 631, 721, 4417, 4841, 29657, 33887, 64993, 207599, 454951, 3054671, 21382697]

約数ペア:

[(1, 21382697), (7, 3054671), (47, 454951), (103, 207599), (329, 64993), (631, 33887), (721, 29657), (4417, 4841)]