21187512

素因数分解:

$2^3\times 3^2\times {\mathrm{103}}^1\times {\mathrm{2857}}^1$

素因数の和:2972

約数の個数: 48

約数和(自身を含む): 57960240

約数和(自身を除く): 36772728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 103, 206, 309, 412, 618, 824, 927, 1236, 1854, 2472, 2857, 3708, 5714, 7416, 8571, 11428, 17142, 22856, 25713, 34284, 51426, 68568, 102852, 205704, 294271, 588542, 882813, 1177084, 1765626, 2354168, 2648439, 3531252, 5296878, 7062504, 10593756, 21187512]

約数ペア:

[(1, 21187512), (2, 10593756), (3, 7062504), (4, 5296878), (6, 3531252), (8, 2648439), (9, 2354168), (12, 1765626), (18, 1177084), (24, 882813), (36, 588542), (72, 294271), (103, 205704), (206, 102852), (309, 68568), (412, 51426), (618, 34284), (824, 25713), (927, 22856), (1236, 17142), (1854, 11428), (2472, 8571), (2857, 7416), (3708, 5714)]