20806797

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:142

約数の個数: 36

約数和(自身を含む): 32226432

約数和(自身を除く): 11419635

約数列:

[1, 3, 11, 31, 33, 43, 93, 121, 129, 341, 363, 473, 1023, 1333, 1419, 1849, 3751, 3999, 5203, 5547, 11253, 14663, 15609, 20339, 43989, 57319, 61017, 161293, 171957, 223729, 483879, 630509, 671187, 1891527, 6935599, 20806797]

約数ペア:

[(1, 20806797), (3, 6935599), (11, 1891527), (31, 671187), (33, 630509), (43, 483879), (93, 223729), (121, 171957), (129, 161293), (341, 61017), (363, 57319), (473, 43989), (1023, 20339), (1333, 15609), (1419, 14663), (1849, 11253), (3751, 5547), (3999, 5203)]