19888473

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{12823}}^1$

素因数の和:12884

約数の個数: 16

約数和(自身を含む): 29546496

約数和(自身を除く): 9658023

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 12823, 38469, 141053, 423159, 602681, 1808043, 6629491, 19888473]

約数ペア:

[(1, 19888473), (3, 6629491), (11, 1808043), (33, 602681), (47, 423159), (141, 141053), (517, 38469), (1551, 12823)]