21740889

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1489}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 30133760

約数和(自身を除く): 8392871

約数列:

[1, 3, 31, 93, 157, 471, 1489, 4467, 4867, 14601, 46159, 138477, 233773, 701319, 7246963, 21740889]

約数ペア:

[(1, 21740889), (3, 7246963), (31, 701319), (93, 233773), (157, 138477), (471, 46159), (1489, 14601), (4467, 4867)]