21383263

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2789}}^1$

素因数の和:2858

約数の個数: 16

約数和(自身を含む): 25310880

約数和(自身を除く): 3927617

約数列:

[1, 11, 17, 41, 187, 451, 697, 2789, 7667, 30679, 47413, 114349, 521543, 1257839, 1943933, 21383263]

約数ペア:

[(1, 21383263), (11, 1943933), (17, 1257839), (41, 521543), (187, 114349), (451, 47413), (697, 30679), (2789, 7667)]