21287628

素因数分解:

$2^2\times 3^2\times {\mathrm{103}}^1\times {\mathrm{5741}}^1$

素因数の和:5854

約数の個数: 36

約数和(自身を含む): 54342288

約数和(自身を除く): 33054660

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 103, 206, 309, 412, 618, 927, 1236, 1854, 3708, 5741, 11482, 17223, 22964, 34446, 51669, 68892, 103338, 206676, 591323, 1182646, 1773969, 2365292, 3547938, 5321907, 7095876, 10643814, 21287628]

約数ペア:

[(1, 21287628), (2, 10643814), (3, 7095876), (4, 5321907), (6, 3547938), (9, 2365292), (12, 1773969), (18, 1182646), (36, 591323), (103, 206676), (206, 103338), (309, 68892), (412, 51669), (618, 34446), (927, 22964), (1236, 17223), (1854, 11482), (3708, 5741)]