28862421

素因数分解:

$3^1\times 7^4\times {\mathrm{4007}}^1$

素因数の和:4038

約数の個数: 20

約数和(自身を含む): 44905632

約数和(自身を除く): 16043211

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 4007, 7203, 12021, 28049, 84147, 196343, 589029, 1374401, 4123203, 9620807, 28862421]

約数ペア:

[(1, 28862421), (3, 9620807), (7, 4123203), (21, 1374401), (49, 589029), (147, 196343), (343, 84147), (1029, 28049), (2401, 12021), (4007, 7203)]