28813743

素因数分解:

$3^2\times 7^1\times {\mathrm{601}}^1\times {\mathrm{761}}^1$

素因数の和:1375

約数の個数: 24

約数和(自身を含む): 47707296

約数和(自身を除く): 18893553

約数列:

[1, 3, 7, 9, 21, 63, 601, 761, 1803, 2283, 4207, 5327, 5409, 6849, 12621, 15981, 37863, 47943, 457361, 1372083, 3201527, 4116249, 9604581, 28813743]

約数ペア:

[(1, 28813743), (3, 9604581), (7, 4116249), (9, 3201527), (21, 1372083), (63, 457361), (601, 47943), (761, 37863), (1803, 15981), (2283, 12621), (4207, 6849), (5327, 5409)]