21235863

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{3079}}^1$

素因数の和:3123

約数の個数: 24

約数和(自身を含む): 32771200

約数和(自身を除く): 11535337

約数列:

[1, 3, 11, 19, 33, 57, 121, 209, 363, 627, 2299, 3079, 6897, 9237, 33869, 58501, 101607, 175503, 372559, 643511, 1117677, 1930533, 7078621, 21235863]

約数ペア:

[(1, 21235863), (3, 7078621), (11, 1930533), (19, 1117677), (33, 643511), (57, 372559), (121, 175503), (209, 101607), (363, 58501), (627, 33869), (2299, 9237), (3079, 6897)]