221287801

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1\times {\mathrm{2371}}^1$

素因数の和:2644

約数の個数: 16

約数和(自身を含む): 258073600

約数和(自身を除く): 36785799

約数列:

[1, 7, 67, 199, 469, 1393, 2371, 13333, 16597, 93331, 158857, 471829, 1111999, 3302803, 31612543, 221287801]

約数ペア:

[(1, 221287801), (7, 31612543), (67, 3302803), (199, 1111999), (469, 471829), (1393, 158857), (2371, 93331), (13333, 16597)]