71721195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{52543}}^1$

素因数の和:52571

約数の個数: 32

約数和(自身を含む): 141238272

約数和(自身を除く): 69517077

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 52543, 157629, 262715, 367801, 683059, 788145, 1103403, 1839005, 2049177, 3415295, 4781413, 5517015, 10245885, 14344239, 23907065, 71721195]

約数ペア:

[(1, 71721195), (3, 23907065), (5, 14344239), (7, 10245885), (13, 5517015), (15, 4781413), (21, 3415295), (35, 2049177), (39, 1839005), (65, 1103403), (91, 788145), (105, 683059), (195, 367801), (273, 262715), (455, 157629), (1365, 52543)]