20129115

素因数分解:

$3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2087}}^1$

素因数の和:2738

約数の個数: 16

約数和(自身を含む): 32272128

約数和(自身を除く): 12143013

約数列:

[1, 3, 5, 15, 643, 1929, 2087, 3215, 6261, 9645, 10435, 31305, 1341941, 4025823, 6709705, 20129115]

約数ペア:

[(1, 20129115), (3, 6709705), (5, 4025823), (15, 1341941), (643, 31305), (1929, 10435), (2087, 9645), (3215, 6261)]