21772377

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19993}}^1$

素因数の和:20021

約数の個数: 18

約数和(自身を含む): 34569626

約数和(自身を除く): 12797249

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19993, 59979, 179937, 219923, 659769, 1979307, 2419153, 7257459, 21772377]

約数ペア:

[(1, 21772377), (3, 7257459), (9, 2419153), (11, 1979307), (33, 659769), (99, 219923), (121, 179937), (363, 59979), (1089, 19993)]