21982037

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2399}}^1$

素因数の和:2441

約数の個数: 24

約数和(自身を含む): 29548800

約数和(自身を除く): 7566763

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 2399, 9163, 16793, 26389, 40783, 117551, 184723, 285481, 448613, 1293061, 1998367, 3140291, 21982037]

約数ペア:

[(1, 21982037), (7, 3140291), (11, 1998367), (17, 1293061), (49, 448613), (77, 285481), (119, 184723), (187, 117551), (539, 40783), (833, 26389), (1309, 16793), (2399, 9163)]