21646587

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5413}}^1$

素因数の和:5490

約数の個数: 16

約数和(自身を含む): 30491648

約数和(自身を除く): 8845061

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5413, 16239, 167803, 232759, 503409, 698277, 7215529, 21646587]

約数ペア:

[(1, 21646587), (3, 7215529), (31, 698277), (43, 503409), (93, 232759), (129, 167803), (1333, 16239), (3999, 5413)]