21789804987

素因数分解:

$3^2\times {\mathrm{1229}}^1\times {\mathrm{1969967}}^1$

素因数の和:1971202

約数の個数: 12

約数和(自身を含む): 31499788320

約数和(自身を除く): 9709983333

約数列:

[1, 3, 9, 1229, 3687, 11061, 1969967, 5909901, 17729703, 2421089443, 7263268329, 21789804987]

約数ペア:

[(1, 21789804987), (3, 7263268329), (9, 2421089443), (1229, 17729703), (3687, 5909901), (11061, 1969967)]