21190797

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{613}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 32183424

約数和(自身を除く): 10992627

約数列:

[1, 3, 9, 23, 69, 167, 207, 501, 613, 1503, 1839, 3841, 5517, 11523, 14099, 34569, 42297, 102371, 126891, 307113, 921339, 2354533, 7063599, 21190797]

約数ペア:

[(1, 21190797), (3, 7063599), (9, 2354533), (23, 921339), (69, 307113), (167, 126891), (207, 102371), (501, 42297), (613, 34569), (1503, 14099), (1839, 11523), (3841, 5517)]