20487665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2719}}^1$

素因数の和:2872

約数の個数: 16

約数和(自身を含む): 27025920

約数和(自身を除く): 6538255

約数列:

[1, 5, 11, 55, 137, 685, 1507, 2719, 7535, 13595, 29909, 149545, 372503, 1862515, 4097533, 20487665]

約数ペア:

[(1, 20487665), (5, 4097533), (11, 1862515), (55, 372503), (137, 149545), (685, 29909), (1507, 13595), (2719, 7535)]