28208481

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43331}}^1$

素因数の和:43372

約数の個数: 16

約数和(自身を含む): 44371968

約数和(自身を除く): 16163487

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 43331, 129993, 303317, 909951, 1343261, 4029783, 9402827, 28208481]

約数ペア:

[(1, 28208481), (3, 9402827), (7, 4029783), (21, 1343261), (31, 909951), (93, 303317), (217, 129993), (651, 43331)]