9905005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2467}}^1$

素因数の和:2556

約数の個数: 16

約数和(自身を含む): 13149504

約数和(自身を除く): 3244499

約数列:

[1, 5, 11, 55, 73, 365, 803, 2467, 4015, 12335, 27137, 135685, 180091, 900455, 1981001, 9905005]

約数ペア:

[(1, 9905005), (5, 1981001), (11, 900455), (55, 180091), (73, 135685), (365, 27137), (803, 12335), (2467, 4015)]