21029856

素因数分解:

$2^5\times 3^1\times {\mathrm{439}}^1\times {\mathrm{499}}^1$

素因数の和:951

約数の個数: 48

約数和(自身を含む): 55440000

約数和(自身を除く): 34410144

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 439, 499, 878, 998, 1317, 1497, 1756, 1996, 2634, 2994, 3512, 3992, 5268, 5988, 7024, 7984, 10536, 11976, 14048, 15968, 21072, 23952, 42144, 47904, 219061, 438122, 657183, 876244, 1314366, 1752488, 2628732, 3504976, 5257464, 7009952, 10514928, 21029856]

約数ペア:

[(1, 21029856), (2, 10514928), (3, 7009952), (4, 5257464), (6, 3504976), (8, 2628732), (12, 1752488), (16, 1314366), (24, 876244), (32, 657183), (48, 438122), (96, 219061), (439, 47904), (499, 42144), (878, 23952), (998, 21072), (1317, 15968), (1497, 14048), (1756, 11976), (1996, 10536), (2634, 7984), (2994, 7024), (3512, 5988), (3992, 5268)]