21897213

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4421}}^1$

素因数の和:4564

約数の個数: 16

約数和(自身を含む): 31696896

約数和(自身を除く): 9799683

約数列:

[1, 3, 13, 39, 127, 381, 1651, 4421, 4953, 13263, 57473, 172419, 561467, 1684401, 7299071, 21897213]

約数ペア:

[(1, 21897213), (3, 7299071), (13, 1684401), (39, 561467), (127, 172419), (381, 57473), (1651, 13263), (4421, 4953)]