21054211

素因数分解:

${\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:414

約数の個数: 16

約数和(自身を含む): 23034240

約数和(自身を除く): 1980029

約数列:

[1, 17, 61, 79, 257, 1037, 1343, 4369, 4819, 15677, 20303, 81923, 266509, 345151, 1238483, 21054211]

約数ペア:

[(1, 21054211), (17, 1238483), (61, 345151), (79, 266509), (257, 81923), (1037, 20303), (1343, 15677), (4369, 4819)]