20939831

素因数分解:

${\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:466

約数の個数: 16

約数和(自身を含む): 23496480

約数和(自身を除く): 2556649

約数列:

[1, 11, 73, 89, 293, 803, 979, 3223, 6497, 21389, 26077, 71467, 235279, 286847, 1903621, 20939831]

約数ペア:

[(1, 20939831), (11, 1903621), (73, 286847), (89, 235279), (293, 71467), (803, 26077), (979, 21389), (3223, 6497)]