21478161

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1\times {\mathrm{487}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 29287808

約数和(自身を除く): 7809647

約数列:

[1, 3, 61, 183, 241, 487, 723, 1461, 14701, 29707, 44103, 89121, 117367, 352101, 7159387, 21478161]

約数ペア:

[(1, 21478161), (3, 7159387), (61, 352101), (183, 117367), (241, 89121), (487, 44103), (723, 29707), (1461, 14701)]