28035007

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4001}}^1$

素因数の和:4039

約数の個数: 24

約数和(自身を含む): 38323152

約数和(自身を除く): 10288145

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 4001, 7007, 28007, 44011, 52013, 196049, 308077, 364091, 572143, 2156539, 2548637, 4005001, 28035007]

約数ペア:

[(1, 28035007), (7, 4005001), (11, 2548637), (13, 2156539), (49, 572143), (77, 364091), (91, 308077), (143, 196049), (539, 52013), (637, 44011), (1001, 28007), (4001, 7007)]