21490941

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{5077}}^1$

素因数の和:5180

約数の個数: 16

約数和(自身を含む): 30711744

約数和(自身を除く): 9220803

約数列:

[1, 3, 17, 51, 83, 249, 1411, 4233, 5077, 15231, 86309, 258927, 421391, 1264173, 7163647, 21490941]

約数ペア:

[(1, 21490941), (3, 7163647), (17, 1264173), (51, 421391), (83, 258927), (249, 86309), (1411, 15231), (4233, 5077)]