21957755

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4657}}^1$

素因数の和:4726

約数の個数: 16

約数和(自身を含む): 28171584

約数和(自身を除く): 6213829

約数列:

[1, 5, 23, 41, 115, 205, 943, 4657, 4715, 23285, 107111, 190937, 535555, 954685, 4391551, 21957755]

約数ペア:

[(1, 21957755), (5, 4391551), (23, 954685), (41, 535555), (115, 190937), (205, 107111), (943, 23285), (4657, 4715)]