21777561

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10949}}^1$

素因数の和:10985

約数の個数: 24

約数和(自身を含む): 35872200

約数和(自身を除く): 14094639

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10949, 32847, 98541, 142337, 186133, 427011, 558399, 1281033, 1675197, 2419729, 7259187, 21777561]

約数ペア:

[(1, 21777561), (3, 7259187), (9, 2419729), (13, 1675197), (17, 1281033), (39, 558399), (51, 427011), (117, 186133), (153, 142337), (221, 98541), (663, 32847), (1989, 10949)]