21055197

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{1319}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 29842560

約数和(自身を除く): 8787363

約数列:

[1, 3, 17, 51, 313, 939, 1319, 3957, 5321, 15963, 22423, 67269, 412847, 1238541, 7018399, 21055197]

約数ペア:

[(1, 21055197), (3, 7018399), (17, 1238541), (51, 412847), (313, 67269), (939, 22423), (1319, 15963), (3957, 5321)]