15031681

素因数分解:

$7^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 18320256

約数和(自身を除く): 3288575

約数列:

[1, 7, 47, 49, 61, 107, 329, 427, 749, 2303, 2867, 2989, 5029, 5243, 6527, 20069, 35203, 45689, 140483, 246421, 306769, 319823, 2147383, 15031681]

約数ペア:

[(1, 15031681), (7, 2147383), (47, 319823), (49, 306769), (61, 246421), (107, 140483), (329, 45689), (427, 35203), (749, 20069), (2303, 6527), (2867, 5243), (2989, 5029)]