19857635

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 28283904

約数和(自身を除く): 8426269

約数列:

[1, 5, 7, 35, 61, 71, 131, 305, 355, 427, 497, 655, 917, 2135, 2485, 4331, 4585, 7991, 9301, 21655, 30317, 39955, 46505, 55937, 65107, 151585, 279685, 325535, 567361, 2836805, 3971527, 19857635]

約数ペア:

[(1, 19857635), (5, 3971527), (7, 2836805), (35, 567361), (61, 325535), (71, 279685), (131, 151585), (305, 65107), (355, 55937), (427, 46505), (497, 39955), (655, 30317), (917, 21655), (2135, 9301), (2485, 7991), (4331, 4585)]