21840973

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{9781}}^1$

素因数の和:9828

約数の個数: 16

約数和(自身を含む): 28172160

約数和(自身を除く): 6331187

約数列:

[1, 7, 11, 29, 77, 203, 319, 2233, 9781, 68467, 107591, 283649, 753137, 1985543, 3120139, 21840973]

約数ペア:

[(1, 21840973), (7, 3120139), (11, 1985543), (29, 753137), (77, 283649), (203, 107591), (319, 68467), (2233, 9781)]