21815101

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3881}}^1$

素因数の和:3972

約数の個数: 16

約数和(自身を含む): 27577728

約数和(自身を除く): 5762627

約数列:

[1, 7, 11, 73, 77, 511, 803, 3881, 5621, 27167, 42691, 283313, 298837, 1983191, 3116443, 21815101]

約数ペア:

[(1, 21815101), (7, 3116443), (11, 1983191), (73, 298837), (77, 283313), (511, 42691), (803, 27167), (3881, 5621)]