16390989

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 24328512

約数和(自身を除く): 7937523

約数列:

[1, 3, 9, 71, 113, 213, 227, 339, 639, 681, 1017, 2043, 8023, 16117, 24069, 25651, 48351, 72207, 76953, 145053, 230859, 1821221, 5463663, 16390989]

約数ペア:

[(1, 16390989), (3, 5463663), (9, 1821221), (71, 230859), (113, 145053), (213, 76953), (227, 72207), (339, 48351), (639, 25651), (681, 24069), (1017, 16117), (2043, 8023)]