21809763

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13691}}^1$

素因数の和:13759

約数の個数: 16

約数和(自身を含む): 32860800

約数和(自身を除く): 11051037

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13691, 41073, 123219, 369657, 807769, 2423307, 7269921, 21809763]

約数ペア:

[(1, 21809763), (3, 7269921), (9, 2423307), (27, 807769), (59, 369657), (177, 123219), (531, 41073), (1593, 13691)]