21239189

素因数分解:

${\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 23030784

約数和(自身を除く): 1791595

約数列:

[1, 23, 41, 101, 223, 943, 2323, 4141, 5129, 9143, 22523, 95243, 210289, 518029, 923443, 21239189]

約数ペア:

[(1, 21239189), (23, 923443), (41, 518029), (101, 210289), (223, 95243), (943, 22523), (2323, 9143), (4141, 5129)]