20501682747

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{937}}^1\times {\mathrm{80147}}^1$

素因数の和:81107

約数の個数: 32

約数和(自身を含む): 33680113152

約数和(自身を除く): 13178430405

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 937, 2811, 6559, 12181, 19677, 36543, 80147, 85267, 240441, 255801, 561029, 1041911, 1683087, 3125733, 7293377, 21880131, 75097739, 225293217, 525684173, 976270607, 1577052519, 2928811821, 6833894249, 20501682747]

約数ペア:

[(1, 20501682747), (3, 6833894249), (7, 2928811821), (13, 1577052519), (21, 976270607), (39, 525684173), (91, 225293217), (273, 75097739), (937, 21880131), (2811, 7293377), (6559, 3125733), (12181, 1683087), (19677, 1041911), (36543, 561029), (80147, 255801), (85267, 240441)]