21000508808

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{1061}}^1\times {\mathrm{79811}}^1$

素因数の和:80909

約数の個数: 32

約数和(自身を含む): 40684965120

約数和(自身を除く): 19684456312

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 1061, 2122, 4244, 8488, 32891, 65782, 79811, 131564, 159622, 263128, 319244, 638488, 2474141, 4948282, 9896564, 19793128, 84679471, 169358942, 338717884, 677435768, 2625063601, 5250127202, 10500254404, 21000508808]

約数ペア:

[(1, 21000508808), (2, 10500254404), (4, 5250127202), (8, 2625063601), (31, 677435768), (62, 338717884), (124, 169358942), (248, 84679471), (1061, 19793128), (2122, 9896564), (4244, 4948282), (8488, 2474141), (32891, 638488), (65782, 319244), (79811, 263128), (131564, 159622)]