21496237

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 27279360

約数和(自身を除く): 5783123

約数列:

[1, 7, 23, 31, 59, 73, 161, 217, 413, 511, 713, 1357, 1679, 1829, 2263, 4307, 4991, 9499, 11753, 12803, 15841, 30149, 42067, 52049, 99061, 133517, 294469, 364343, 693427, 934619, 3070891, 21496237]

約数ペア:

[(1, 21496237), (7, 3070891), (23, 934619), (31, 693427), (59, 364343), (73, 294469), (161, 133517), (217, 99061), (413, 52049), (511, 42067), (713, 30149), (1357, 15841), (1679, 12803), (1829, 11753), (2263, 9499), (4307, 4991)]