20388501

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17033}}^1$

素因数の和:17065

約数の個数: 24

約数和(自身を含む): 35430720

約数和(自身を除く): 15042219

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17033, 51099, 119231, 153297, 323627, 357693, 970881, 1073079, 2265389, 2912643, 6796167, 20388501]

約数ペア:

[(1, 20388501), (3, 6796167), (7, 2912643), (9, 2265389), (19, 1073079), (21, 970881), (57, 357693), (63, 323627), (133, 153297), (171, 119231), (399, 51099), (1197, 17033)]