209475721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{823}}^1\times {\mathrm{2797}}^1$

素因数の和:3640

約数の個数: 16

約数和(自身を含む): 258221824

約数和(自身を除く): 48746103

約数列:

[1, 7, 13, 91, 823, 2797, 5761, 10699, 19579, 36361, 74893, 254527, 2301931, 16113517, 29925103, 209475721]

約数ペア:

[(1, 209475721), (7, 29925103), (13, 16113517), (91, 2301931), (823, 254527), (2797, 74893), (5761, 36361), (10699, 19579)]