129738721

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{13043}}^1$

素因数の和:13093

約数の個数: 16

約数和(自身を含む): 156528000

約数和(自身を除く): 26789279

約数列:

[1, 7, 29, 49, 203, 343, 1421, 9947, 13043, 91301, 378247, 639107, 2647729, 4473749, 18534103, 129738721]

約数ペア:

[(1, 129738721), (7, 18534103), (29, 4473749), (49, 2647729), (203, 639107), (343, 378247), (1421, 91301), (9947, 13043)]