20505581

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 22498560

約数和(自身を除く): 1992979

約数列:

[1, 23, 29, 71, 433, 667, 1633, 2059, 9959, 12557, 30743, 47357, 288811, 707089, 891547, 20505581]

約数ペア:

[(1, 20505581), (23, 891547), (29, 707089), (71, 288811), (433, 47357), (667, 30743), (1633, 12557), (2059, 9959)]