28946281

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 36923712

約数和(自身を除く): 7977431

約数列:

[1, 7, 13, 31, 91, 217, 331, 403, 961, 2317, 2821, 4303, 6727, 10261, 12493, 30121, 71827, 87451, 133393, 318091, 933751, 2226637, 4135183, 28946281]

約数ペア:

[(1, 28946281), (7, 4135183), (13, 2226637), (31, 933751), (91, 318091), (217, 133393), (331, 87451), (403, 71827), (961, 30121), (2317, 12493), (2821, 10261), (4303, 6727)]