21065784

素因数分解:

$2^3\times 3^1\times {\mathrm{499}}^1\times {\mathrm{1759}}^1$

素因数の和:2267

約数の個数: 32

約数和(自身を含む): 52800000

約数和(自身を除く): 31734216

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 499, 998, 1497, 1759, 1996, 2994, 3518, 3992, 5277, 5988, 7036, 10554, 11976, 14072, 21108, 42216, 877741, 1755482, 2633223, 3510964, 5266446, 7021928, 10532892, 21065784]

約数ペア:

[(1, 21065784), (2, 10532892), (3, 7021928), (4, 5266446), (6, 3510964), (8, 2633223), (12, 1755482), (24, 877741), (499, 42216), (998, 21108), (1497, 14072), (1759, 11976), (1996, 10554), (2994, 7036), (3518, 5988), (3992, 5277)]