9991475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:527

約数の個数: 24

約数和(自身を含む): 13561632

約数和(自身を除く): 3570157

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 433, 923, 1775, 2165, 4615, 5629, 10825, 23075, 28145, 30743, 140725, 153715, 399659, 768575, 1998295, 9991475]

約数ペア:

[(1, 9991475), (5, 1998295), (13, 768575), (25, 399659), (65, 153715), (71, 140725), (325, 30743), (355, 28145), (433, 23075), (923, 10825), (1775, 5629), (2165, 4615)]