21071901

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{1019}}^1$

素因数の和:1196

約数の個数: 16

約数和(自身を含む): 28837440

約数和(自身を除く): 7765539

約数列:

[1, 3, 61, 113, 183, 339, 1019, 3057, 6893, 20679, 62159, 115147, 186477, 345441, 7023967, 21071901]

約数ペア:

[(1, 21071901), (3, 7023967), (61, 345441), (113, 186477), (183, 115147), (339, 62159), (1019, 20679), (3057, 6893)]