19782663

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 26849280

約数和(自身を除く): 7066617

約数列:

[1, 3, 127, 137, 379, 381, 411, 1137, 17399, 48133, 51923, 52197, 144399, 155769, 6594221, 19782663]

約数ペア:

[(1, 19782663), (3, 6594221), (127, 155769), (137, 144399), (379, 52197), (381, 51923), (411, 48133), (1137, 17399)]