28790145

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9011}}^1$

素因数の和:9093

約数の個数: 24

約数和(自身を含む): 50611392

約数和(自身を除く): 21821247

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 9011, 27033, 45055, 81099, 135165, 405495, 639781, 1919343, 3198905, 5758029, 9596715, 28790145]

約数ペア:

[(1, 28790145), (3, 9596715), (5, 5758029), (9, 3198905), (15, 1919343), (45, 639781), (71, 405495), (213, 135165), (355, 81099), (639, 45055), (1065, 27033), (3195, 9011)]