21251846

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137999}}^1$

素因数の和:138019

約数の個数: 16

約数和(自身を含む): 39744000

約数和(自身を除く): 18492154

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137999, 275998, 965993, 1517989, 1931986, 3035978, 10625923, 21251846]

約数ペア:

[(1, 21251846), (2, 10625923), (7, 3035978), (11, 1931986), (14, 1517989), (22, 965993), (77, 275998), (154, 137999)]