20978067

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{463}}^1\times {\mathrm{1373}}^1$

素因数の和:1850

約数の個数: 16

約数和(自身を含む): 30601728

約数和(自身を除く): 9623661

約数列:

[1, 3, 11, 33, 463, 1373, 1389, 4119, 5093, 15103, 15279, 45309, 635699, 1907097, 6992689, 20978067]

約数ペア:

[(1, 20978067), (3, 6992689), (11, 1907097), (33, 635699), (463, 45309), (1373, 15279), (1389, 15103), (4119, 5093)]