17722881

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19891}}^1$

素因数の和:19914

約数の個数: 20

約数和(自身を含む): 28883184

約数和(自身を除く): 11160303

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 19891, 59673, 179019, 218801, 537057, 656403, 1611171, 1969209, 5907627, 17722881]

約数ペア:

[(1, 17722881), (3, 5907627), (9, 1969209), (11, 1611171), (27, 656403), (33, 537057), (81, 218801), (99, 179019), (297, 59673), (891, 19891)]