20122839

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 33770880

約数和(自身を除く): 13648041

約数列:

[1, 3, 9, 11, 29, 33, 43, 87, 99, 129, 163, 261, 319, 387, 473, 489, 957, 1247, 1419, 1467, 1793, 2871, 3741, 4257, 4727, 5379, 7009, 11223, 13717, 14181, 16137, 21027, 41151, 42543, 51997, 63081, 77099, 123453, 155991, 203261, 231297, 467973, 609783, 693891, 1829349, 2235871, 6707613, 20122839]

約数ペア:

[(1, 20122839), (3, 6707613), (9, 2235871), (11, 1829349), (29, 693891), (33, 609783), (43, 467973), (87, 231297), (99, 203261), (129, 155991), (163, 123453), (261, 77099), (319, 63081), (387, 51997), (473, 42543), (489, 41151), (957, 21027), (1247, 16137), (1419, 14181), (1467, 13717), (1793, 11223), (2871, 7009), (3741, 5379), (4257, 4727)]