28201971

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43321}}^1$

素因数の和:43362

約数の個数: 16

約数和(自身を含む): 44361728

約数和(自身を除く): 16159757

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 43321, 129963, 303247, 909741, 1342951, 4028853, 9400657, 28201971]

約数ペア:

[(1, 28201971), (3, 9400657), (7, 4028853), (21, 1342951), (31, 909741), (93, 303247), (217, 129963), (651, 43321)]