20456424009

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{786211}}^1$

素因数の和:786290

約数の個数: 36

約数和(自身を含む): 34954985520

約数和(自身を除く): 14498561511

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 413, 441, 531, 1239, 2891, 3717, 8673, 26019, 786211, 2358633, 5503477, 7075899, 16510431, 38524339, 46386449, 49531293, 115573017, 139159347, 324705143, 346719051, 417478041, 974115429, 2272936001, 2922346287, 6818808003, 20456424009]

約数ペア:

[(1, 20456424009), (3, 6818808003), (7, 2922346287), (9, 2272936001), (21, 974115429), (49, 417478041), (59, 346719051), (63, 324705143), (147, 139159347), (177, 115573017), (413, 49531293), (441, 46386449), (531, 38524339), (1239, 16510431), (2891, 7075899), (3717, 5503477), (8673, 2358633), (26019, 786211)]