21078838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{23369}}^1$

素因数の和:23423

約数の個数: 16

約数和(自身を含む): 35335440

約数和(自身を除く): 14256602

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 23369, 46738, 257059, 514118, 958129, 1916258, 10539419, 21078838]

約数ペア:

[(1, 21078838), (2, 10539419), (11, 1916258), (22, 958129), (41, 514118), (82, 257059), (451, 46738), (902, 23369)]