51721825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{307}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 67370688

約数和(自身を除く): 15648863

約数列:

[1, 5, 23, 25, 115, 293, 307, 575, 1465, 1535, 6739, 7061, 7325, 7675, 33695, 35305, 89951, 168475, 176525, 449755, 2068873, 2248775, 10344365, 51721825]

約数ペア:

[(1, 51721825), (5, 10344365), (23, 2248775), (25, 2068873), (115, 449755), (293, 176525), (307, 168475), (575, 89951), (1465, 35305), (1535, 33695), (6739, 7675), (7061, 7325)]