20888911719

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{862501}}^1$

素因数の和:862549

約数の個数: 40

約数和(自身を含む): 35065881312

約数和(自身を除く): 14176969593

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 1053, 1863, 2691, 8073, 24219, 862501, 2587503, 7762509, 11212513, 19837523, 23287527, 33637539, 59512569, 69862581, 100912617, 178537707, 257887799, 302737851, 535613121, 773663397, 908213553, 1606839363, 2320990191, 6962970573, 20888911719]

約数ペア:

[(1, 20888911719), (3, 6962970573), (9, 2320990191), (13, 1606839363), (23, 908213553), (27, 773663397), (39, 535613121), (69, 302737851), (81, 257887799), (117, 178537707), (207, 100912617), (299, 69862581), (351, 59512569), (621, 33637539), (897, 23287527), (1053, 19837523), (1863, 11212513), (2691, 7762509), (8073, 2587503), (24219, 862501)]