21878269

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1627}}^1$

素因数の和:1764

約数の個数: 16

約数和(自身を含む): 26725248

約数和(自身を除く): 4846979

約数列:

[1, 7, 17, 113, 119, 791, 1627, 1921, 11389, 13447, 27659, 183851, 193613, 1286957, 3125467, 21878269]

約数ペア:

[(1, 21878269), (7, 3125467), (17, 1286957), (113, 193613), (119, 183851), (791, 27659), (1627, 13447), (1921, 11389)]