28345401

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6337}}^1$

素因数の和:6421

約数の個数: 24

約数和(自身を含む): 47458944

約数和(自身を除く): 19113543

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 6337, 19011, 44359, 57033, 133077, 399231, 449927, 1349781, 3149489, 4049343, 9448467, 28345401]

約数ペア:

[(1, 28345401), (3, 9448467), (7, 4049343), (9, 3149489), (21, 1349781), (63, 449927), (71, 399231), (213, 133077), (497, 57033), (639, 44359), (1491, 19011), (4473, 6337)]