20881113

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13463}}^1$

素因数の和:13524

約数の個数: 16

約数和(自身を含む): 31021056

約数和(自身を除く): 10139943

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13463, 40389, 148093, 444279, 632761, 1898283, 6960371, 20881113]

約数ペア:

[(1, 20881113), (3, 6960371), (11, 1898283), (33, 632761), (47, 444279), (141, 148093), (517, 40389), (1551, 13463)]