20445183

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 35804160

約数和(自身を除く): 15358977

約数列:

[1, 3, 9, 11, 23, 27, 33, 41, 69, 73, 99, 123, 207, 219, 253, 297, 369, 451, 621, 657, 759, 803, 943, 1107, 1353, 1679, 1971, 2277, 2409, 2829, 2993, 4059, 5037, 6831, 7227, 8487, 8979, 10373, 12177, 15111, 18469, 21681, 25461, 26937, 31119, 32923, 45333, 55407, 68839, 80811, 93357, 98769, 166221, 206517, 280071, 296307, 498663, 619551, 757229, 888921, 1858653, 2271687, 6815061, 20445183]

約数ペア:

[(1, 20445183), (3, 6815061), (9, 2271687), (11, 1858653), (23, 888921), (27, 757229), (33, 619551), (41, 498663), (69, 296307), (73, 280071), (99, 206517), (123, 166221), (207, 98769), (219, 93357), (253, 80811), (297, 68839), (369, 55407), (451, 45333), (621, 32923), (657, 31119), (759, 26937), (803, 25461), (943, 21681), (1107, 18469), (1353, 15111), (1679, 12177), (1971, 10373), (2277, 8979), (2409, 8487), (2829, 7227), (2993, 6831), (4059, 5037)]