21003039

素因数分解:

$3^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 31041920

約数和(自身を除く): 10038881

約数列:

[1, 3, 9, 103, 139, 163, 309, 417, 489, 927, 1251, 1467, 14317, 16789, 22657, 42951, 50367, 67971, 128853, 151101, 203913, 2333671, 7001013, 21003039]

約数ペア:

[(1, 21003039), (3, 7001013), (9, 2333671), (103, 203913), (139, 151101), (163, 128853), (309, 67971), (417, 50367), (489, 42951), (927, 22657), (1251, 16789), (1467, 14317)]