28214193

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 44236800

約数和(自身を除く): 16022607

約数列:

[1, 3, 7, 21, 71, 127, 149, 213, 381, 447, 497, 889, 1043, 1491, 2667, 3129, 9017, 10579, 18923, 27051, 31737, 56769, 63119, 74053, 132461, 189357, 222159, 397383, 1343533, 4030599, 9404731, 28214193]

約数ペア:

[(1, 28214193), (3, 9404731), (7, 4030599), (21, 1343533), (71, 397383), (127, 222159), (149, 189357), (213, 132461), (381, 74053), (447, 63119), (497, 56769), (889, 31737), (1043, 27051), (1491, 18923), (2667, 10579), (3129, 9017)]