28102851

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9491}}^1$

素因数の和:9551

約数の個数: 24

約数和(自身を含む): 47384064

約数和(自身を除く): 19281213

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9491, 28473, 66437, 85419, 199311, 446077, 597933, 1338231, 3122539, 4014693, 9367617, 28102851]

約数ペア:

[(1, 28102851), (3, 9367617), (7, 4014693), (9, 3122539), (21, 1338231), (47, 597933), (63, 446077), (141, 199311), (329, 85419), (423, 66437), (987, 28473), (2961, 9491)]