20645999

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1061}}^1$

素因数の和:1162

約数の個数: 16

約数和(自身を含む): 23703840

約数和(自身を除く): 3057841

約数列:

[1, 11, 29, 61, 319, 671, 1061, 1769, 11671, 19459, 30769, 64721, 338459, 711931, 1876909, 20645999]

約数ペア:

[(1, 20645999), (11, 1876909), (29, 711931), (61, 338459), (319, 64721), (671, 30769), (1061, 19459), (1769, 11671)]