787788141

素因数分解:

$3^1\times 7^2\times {\mathrm{397}}^1\times {\mathrm{13499}}^1$

素因数の和:13913

約数の個数: 24

約数和(自身を含む): 1225044000

約数和(自身を除く): 437255859

約数列:

[1, 3, 7, 21, 49, 147, 397, 1191, 2779, 8337, 13499, 19453, 40497, 58359, 94493, 283479, 661451, 1984353, 5359103, 16077309, 37513721, 112541163, 262596047, 787788141]

約数ペア:

[(1, 787788141), (3, 262596047), (7, 112541163), (21, 37513721), (49, 16077309), (147, 5359103), (397, 1984353), (1191, 661451), (2779, 283479), (8337, 94493), (13499, 58359), (19453, 40497)]