51531291

素因数分解:

$3^2\times 7^3\times {\mathrm{16693}}^1$

素因数の和:16720

約数の個数: 24

約数和(自身を含む): 86808800

約数和(自身を除く): 35277509

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 16693, 50079, 116851, 150237, 350553, 817957, 1051659, 2453871, 5725699, 7361613, 17177097, 51531291]

約数ペア:

[(1, 51531291), (3, 17177097), (7, 7361613), (9, 5725699), (21, 2453871), (49, 1051659), (63, 817957), (147, 350553), (343, 150237), (441, 116851), (1029, 50079), (3087, 16693)]