20515858

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49081}}^1$

素因数の和:49113

約数の個数: 16

約数和(自身を含む): 35339040

約数和(自身を除く): 14823182

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 49081, 98162, 539891, 932539, 1079782, 1865078, 10257929, 20515858]

約数ペア:

[(1, 20515858), (2, 10257929), (11, 1865078), (19, 1079782), (22, 932539), (38, 539891), (209, 98162), (418, 49081)]