16821357

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2791}}^1$

素因数の和:2849

約数の個数: 24

約数和(自身を含む): 26736192

約数和(自身を除く): 9914835

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 2791, 6027, 8373, 19537, 58611, 114431, 136759, 343293, 410277, 801017, 2403051, 5607119, 16821357]

約数ペア:

[(1, 16821357), (3, 5607119), (7, 2403051), (21, 801017), (41, 410277), (49, 343293), (123, 136759), (147, 114431), (287, 58611), (861, 19537), (2009, 8373), (2791, 6027)]