21697165

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26953}}^1$

素因数の和:26988

約数の個数: 16

約数和(自身を含む): 31051008

約数和(自身を除く): 9353843

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 26953, 134765, 188671, 619919, 943355, 3099595, 4339433, 21697165]

約数ペア:

[(1, 21697165), (5, 4339433), (7, 3099595), (23, 943355), (35, 619919), (115, 188671), (161, 134765), (805, 26953)]