21780627

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{5197}}^1$

素因数の和:5338

約数の個数: 16

約数和(自身を含む): 31936512

約数和(自身を除く): 10155885

約数列:

[1, 3, 11, 33, 127, 381, 1397, 4191, 5197, 15591, 57167, 171501, 660019, 1980057, 7260209, 21780627]

約数ペア:

[(1, 21780627), (3, 7260209), (11, 1980057), (33, 660019), (127, 171501), (381, 57167), (1397, 15591), (4191, 5197)]