1188891921

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2979679}}^1$

素因数の和:2979708

約数の個数: 16

約数和(自身を含む): 1906995200

約数和(自身を除く): 718103279

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2979679, 8939037, 20857753, 56613901, 62573259, 169841703, 396297307, 1188891921]

約数ペア:

[(1, 1188891921), (3, 396297307), (7, 169841703), (19, 62573259), (21, 56613901), (57, 20857753), (133, 8939037), (399, 2979679)]