201821347

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8563}}^1$

素因数の和:8627

約数の個数: 24

約数和(自身を含む): 259694736

約数和(自身を除く): 57873389

約数列:

[1, 7, 13, 37, 49, 91, 259, 481, 637, 1813, 3367, 8563, 23569, 59941, 111319, 316831, 419587, 779233, 2217817, 4118803, 5454631, 15524719, 28831621, 201821347]

約数ペア:

[(1, 201821347), (7, 28831621), (13, 15524719), (37, 5454631), (49, 4118803), (91, 2217817), (259, 779233), (481, 419587), (637, 316831), (1813, 111319), (3367, 59941), (8563, 23569)]