21427833

素因数分解:

$3^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1951}}^1$

素因数の和:2484

約数の個数: 16

約数和(自身を含む): 32731136

約数和(自身を除く): 11303303

約数列:

[1, 3, 7, 21, 523, 1569, 1951, 3661, 5853, 10983, 13657, 40971, 1020373, 3061119, 7142611, 21427833]

約数ペア:

[(1, 21427833), (3, 7142611), (7, 3061119), (21, 1020373), (523, 40971), (1569, 13657), (1951, 10983), (3661, 5853)]