20457899

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{683}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 25608960

約数和(自身を除く): 5151061

約数列:

[1, 7, 11, 77, 389, 683, 2723, 4279, 4781, 7513, 29953, 52591, 265687, 1859809, 2922557, 20457899]

約数ペア:

[(1, 20457899), (7, 2922557), (11, 1859809), (77, 265687), (389, 52591), (683, 29953), (2723, 7513), (4279, 4781)]