217804917

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{3931}}^1$

素因数の和:4041

約数の個数: 32

約数和(自身を含む): 335195136

約数和(自身を除く): 117390219

約数列:

[1, 3, 11, 23, 33, 69, 73, 219, 253, 759, 803, 1679, 2409, 3931, 5037, 11793, 18469, 43241, 55407, 90413, 129723, 271239, 286963, 860889, 994543, 2983629, 3156593, 6600149, 9469779, 19800447, 72601639, 217804917]

約数ペア:

[(1, 217804917), (3, 72601639), (11, 19800447), (23, 9469779), (33, 6600149), (69, 3156593), (73, 2983629), (219, 994543), (253, 860889), (759, 286963), (803, 271239), (1679, 129723), (2409, 90413), (3931, 55407), (5037, 43241), (11793, 18469)]