19988019

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{829}}^1$

素因数の和:904

約数の個数: 32

約数和(自身を含む): 31872000

約数和(自身を除く): 11883981

約数列:

[1, 3, 9, 19, 27, 47, 57, 141, 171, 423, 513, 829, 893, 1269, 2487, 2679, 7461, 8037, 15751, 22383, 24111, 38963, 47253, 116889, 141759, 350667, 425277, 740297, 1052001, 2220891, 6662673, 19988019]

約数ペア:

[(1, 19988019), (3, 6662673), (9, 2220891), (19, 1052001), (27, 740297), (47, 425277), (57, 350667), (141, 141759), (171, 116889), (423, 47253), (513, 38963), (829, 24111), (893, 22383), (1269, 15751), (2487, 8037), (2679, 7461)]