7200221

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1259}}^1$

素因数の和:1328

約数の個数: 16

約数和(自身を含む): 8870400

約数和(自身を除く): 1670179

約数列:

[1, 7, 19, 43, 133, 301, 817, 1259, 5719, 8813, 23921, 54137, 167447, 378959, 1028603, 7200221]

約数ペア:

[(1, 7200221), (7, 1028603), (19, 378959), (43, 167447), (133, 54137), (301, 23921), (817, 8813), (1259, 5719)]