99971905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{25601}}^1$

素因数の和:25688

約数の個数: 16

約数和(自身を含む): 132720768

約数和(自身を除く): 32748863

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 25601, 128005, 281611, 1408055, 1817671, 9088355, 19994381, 99971905]

約数ペア:

[(1, 99971905), (5, 19994381), (11, 9088355), (55, 1817671), (71, 1408055), (355, 281611), (781, 128005), (3905, 25601)]