21545163

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{11239}}^1$

素因数の和:11319

約数の個数: 16

約数和(自身を含む): 32371200

約数和(自身を除く): 10826037

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 11239, 33717, 101151, 303453, 797969, 2393907, 7181721, 21545163]

約数ペア:

[(1, 21545163), (3, 7181721), (9, 2393907), (27, 797969), (71, 303453), (213, 101151), (639, 33717), (1917, 11239)]