21036816

素因数分解:

$2^4\times 3^2\times {\mathrm{139}}^1\times {\mathrm{1051}}^1$

素因数の和:1204

約数の個数: 60

約数和(自身を含む): 59353840

約数和(自身を除く): 38317024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 139, 144, 278, 417, 556, 834, 1051, 1112, 1251, 1668, 2102, 2224, 2502, 3153, 3336, 4204, 5004, 6306, 6672, 8408, 9459, 10008, 12612, 16816, 18918, 20016, 25224, 37836, 50448, 75672, 146089, 151344, 292178, 438267, 584356, 876534, 1168712, 1314801, 1753068, 2337424, 2629602, 3506136, 5259204, 7012272, 10518408, 21036816]

約数ペア:

[(1, 21036816), (2, 10518408), (3, 7012272), (4, 5259204), (6, 3506136), (8, 2629602), (9, 2337424), (12, 1753068), (16, 1314801), (18, 1168712), (24, 876534), (36, 584356), (48, 438267), (72, 292178), (139, 151344), (144, 146089), (278, 75672), (417, 50448), (556, 37836), (834, 25224), (1051, 20016), (1112, 18918), (1251, 16816), (1668, 12612), (2102, 10008), (2224, 9459), (2502, 8408), (3153, 6672), (3336, 6306), (4204, 5004)]