21010178

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{919}}^1$

素因数の和:1022

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 17144062

約数列:

[1, 2, 7, 14, 23, 46, 71, 142, 161, 322, 497, 919, 994, 1633, 1838, 3266, 6433, 11431, 12866, 21137, 22862, 42274, 65249, 130498, 147959, 295918, 456743, 913486, 1500727, 3001454, 10505089, 21010178]

約数ペア:

[(1, 21010178), (2, 10505089), (7, 3001454), (14, 1500727), (23, 913486), (46, 456743), (71, 295918), (142, 147959), (161, 130498), (322, 65249), (497, 42274), (919, 22862), (994, 21137), (1633, 12866), (1838, 11431), (3266, 6433)]