1287321

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1039}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 1996800

約数和(自身を除く): 709479

約数列:

[1, 3, 7, 21, 59, 177, 413, 1039, 1239, 3117, 7273, 21819, 61301, 183903, 429107, 1287321]

約数ペア:

[(1, 1287321), (3, 429107), (7, 183903), (21, 61301), (59, 21819), (177, 7273), (413, 3117), (1039, 1239)]