21999461275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{25583}}^1$

素因数の和:25716

約数の個数: 48

約数和(自身を含む): 30835883520

約数和(自身を除く): 8836422245

約数列:

[1, 5, 11, 25, 53, 55, 59, 265, 275, 295, 583, 649, 1325, 1475, 2915, 3127, 3245, 14575, 15635, 16225, 25583, 34397, 78175, 127915, 171985, 281413, 639575, 859925, 1355899, 1407065, 1509397, 6779495, 7035325, 7546985, 14914889, 16603367, 33897475, 37734925, 74574445, 79998041, 83016835, 372872225, 399990205, 415084175, 879978451, 1999951025, 4399892255, 21999461275]

約数ペア:

[(1, 21999461275), (5, 4399892255), (11, 1999951025), (25, 879978451), (53, 415084175), (55, 399990205), (59, 372872225), (265, 83016835), (275, 79998041), (295, 74574445), (583, 37734925), (649, 33897475), (1325, 16603367), (1475, 14914889), (2915, 7546985), (3127, 7035325), (3245, 6779495), (14575, 1509397), (15635, 1407065), (16225, 1355899), (25583, 859925), (34397, 639575), (78175, 281413), (127915, 171985)]