39971897

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 48514752

約数和(自身を除く): 8542855

約数列:

[1, 7, 43, 49, 61, 301, 311, 427, 2107, 2177, 2623, 2989, 13373, 15239, 18361, 18971, 93611, 128527, 132797, 655277, 815753, 929579, 5710271, 39971897]

約数ペア:

[(1, 39971897), (7, 5710271), (43, 929579), (49, 815753), (61, 655277), (301, 132797), (311, 128527), (427, 93611), (2107, 18971), (2177, 18361), (2623, 15239), (2989, 13373)]