21612755

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2647}}^1$

素因数の和:2746

約数の個数: 16

約数和(自身を含む): 27454464

約数和(自身を除く): 5841709

約数列:

[1, 5, 23, 71, 115, 355, 1633, 2647, 8165, 13235, 60881, 187937, 304405, 939685, 4322551, 21612755]

約数ペア:

[(1, 21612755), (5, 4322551), (23, 939685), (71, 304405), (115, 187937), (355, 60881), (1633, 13235), (2647, 8165)]