20123873

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1033}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 26404224

約数和(自身を除く): 6280351

約数列:

[1, 7, 11, 23, 77, 121, 161, 253, 847, 1033, 1771, 2783, 7231, 11363, 19481, 23759, 79541, 124993, 166313, 261349, 874951, 1829443, 2874839, 20123873]

約数ペア:

[(1, 20123873), (7, 2874839), (11, 1829443), (23, 874951), (77, 261349), (121, 166313), (161, 124993), (253, 79541), (847, 23759), (1033, 19481), (1771, 11363), (2783, 7231)]