21572217

素因数分解:

$3^3\times {\mathrm{103}}^1\times {\mathrm{7757}}^1$

素因数の和:7869

約数の個数: 16

約数和(自身を含む): 32273280

約数和(自身を除く): 10701063

約数列:

[1, 3, 9, 27, 103, 309, 927, 2781, 7757, 23271, 69813, 209439, 798971, 2396913, 7190739, 21572217]

約数ペア:

[(1, 21572217), (3, 7190739), (9, 2396913), (27, 798971), (103, 209439), (309, 69813), (927, 23271), (2781, 7757)]