21230253

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1637}}^1$

素因数の和:1785

約数の個数: 24

約数和(自身を含む): 33729696

約数和(自身を除く): 12499443

約数列:

[1, 3, 9, 11, 33, 99, 131, 393, 1179, 1441, 1637, 4323, 4911, 12969, 14733, 18007, 54021, 162063, 214447, 643341, 1930023, 2358917, 7076751, 21230253]

約数ペア:

[(1, 21230253), (3, 7076751), (9, 2358917), (11, 1930023), (33, 643341), (99, 214447), (131, 162063), (393, 54021), (1179, 18007), (1441, 14733), (1637, 12969), (4323, 4911)]