21025128

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{929}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 56246400

約数和(自身を除く): 35221272

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 41, 46, 69, 82, 92, 123, 138, 164, 184, 246, 276, 328, 492, 552, 929, 943, 984, 1858, 1886, 2787, 2829, 3716, 3772, 5574, 5658, 7432, 7544, 11148, 11316, 21367, 22296, 22632, 38089, 42734, 64101, 76178, 85468, 114267, 128202, 152356, 170936, 228534, 256404, 304712, 457068, 512808, 876047, 914136, 1752094, 2628141, 3504188, 5256282, 7008376, 10512564, 21025128]

約数ペア:

[(1, 21025128), (2, 10512564), (3, 7008376), (4, 5256282), (6, 3504188), (8, 2628141), (12, 1752094), (23, 914136), (24, 876047), (41, 512808), (46, 457068), (69, 304712), (82, 256404), (92, 228534), (123, 170936), (138, 152356), (164, 128202), (184, 114267), (246, 85468), (276, 76178), (328, 64101), (492, 42734), (552, 38089), (929, 22632), (943, 22296), (984, 21367), (1858, 11316), (1886, 11148), (2787, 7544), (2829, 7432), (3716, 5658), (3772, 5574)]