20353959

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3217}}^1$

素因数の和:3279

約数の個数: 24

約数和(自身を含む): 31793840

約数和(自身を除く): 11439881

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 3217, 6327, 9651, 28953, 61123, 119029, 183369, 357087, 550107, 1071261, 2261551, 6784653, 20353959]

約数ペア:

[(1, 20353959), (3, 6784653), (9, 2261551), (19, 1071261), (37, 550107), (57, 357087), (111, 183369), (171, 119029), (333, 61123), (703, 28953), (2109, 9651), (3217, 6327)]