21965877

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13789}}^1$

素因数の和:13857

約数の個数: 16

約数和(自身を含む): 33096000

約数和(自身を除く): 11130123

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13789, 41367, 124101, 372303, 813551, 2440653, 7321959, 21965877]

約数ペア:

[(1, 21965877), (3, 7321959), (9, 2440653), (27, 813551), (59, 372303), (177, 124101), (531, 41367), (1593, 13789)]