28974321

素因数分解:

$3^3\times {\mathrm{691}}^1\times {\mathrm{1553}}^1$

素因数の和:2253

約数の個数: 16

約数和(自身を含む): 43014720

約数和(自身を除く): 14040399

約数列:

[1, 3, 9, 27, 691, 1553, 2073, 4659, 6219, 13977, 18657, 41931, 1073123, 3219369, 9658107, 28974321]

約数ペア:

[(1, 28974321), (3, 9658107), (9, 3219369), (27, 1073123), (691, 41931), (1553, 18657), (2073, 13977), (4659, 6219)]