1621555

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:151

約数の個数: 24

約数和(自身を含む): 2239920

約数和(自身を除く): 618365

約数列:

[1, 5, 13, 19, 65, 95, 101, 169, 247, 505, 845, 1235, 1313, 1919, 3211, 6565, 9595, 16055, 17069, 24947, 85345, 124735, 324311, 1621555]

約数ペア:

[(1, 1621555), (5, 324311), (13, 124735), (19, 85345), (65, 24947), (95, 17069), (101, 16055), (169, 9595), (247, 6565), (505, 3211), (845, 1919), (1235, 1313)]