21206386

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{1093}}^1$

素因数の和:1293

約数の個数: 16

約数和(自身を含む): 32491800

約数和(自身を除く): 11285414

約数列:

[1, 2, 89, 109, 178, 218, 1093, 2186, 9701, 19402, 97277, 119137, 194554, 238274, 10603193, 21206386]

約数ペア:

[(1, 21206386), (2, 10603193), (89, 238274), (109, 194554), (178, 119137), (218, 97277), (1093, 19402), (2186, 9701)]