20944707

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7499}}^1$

素因数の和:7535

約数の個数: 24

約数和(自身を含む): 34200000

約数和(自身を除く): 13255293

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 7499, 22497, 52493, 142481, 157479, 367451, 427443, 997367, 1102353, 2992101, 6981569, 20944707]

約数ペア:

[(1, 20944707), (3, 6981569), (7, 2992101), (19, 1102353), (21, 997367), (49, 427443), (57, 367451), (133, 157479), (147, 142481), (399, 52493), (931, 22497), (2793, 7499)]