13228971

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2951

約数の個数: 24

約数和(自身を含む): 21187584

約数和(自身を除く): 7958613

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 2903, 4557, 8709, 20321, 60963, 89993, 142247, 269979, 426741, 629951, 1889853, 4409657, 13228971]

約数ペア:

[(1, 13228971), (3, 4409657), (7, 1889853), (21, 629951), (31, 426741), (49, 269979), (93, 142247), (147, 89993), (217, 60963), (651, 20321), (1519, 8709), (2903, 4557)]