21789339

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3907}}^1$

素因数の和:3947

約数の個数: 24

約数和(自身を含む): 34327872

約数和(自身を除く): 12538533

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 429, 507, 1859, 3907, 5577, 11721, 42977, 50791, 128931, 152373, 558701, 660283, 1676103, 1980849, 7263113, 21789339]

約数ペア:

[(1, 21789339), (3, 7263113), (11, 1980849), (13, 1676103), (33, 660283), (39, 558701), (143, 152373), (169, 128931), (429, 50791), (507, 42977), (1859, 11721), (3907, 5577)]