21737901

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1\times {\mathrm{643}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 29675520

約数和(自身を除く): 7937619

約数列:

[1, 3, 59, 177, 191, 573, 643, 1929, 11269, 33807, 37937, 113811, 122813, 368439, 7245967, 21737901]

約数ペア:

[(1, 21737901), (3, 7245967), (59, 368439), (177, 122813), (191, 113811), (573, 37937), (643, 33807), (1929, 11269)]