21164268

素因数分解:

$2^2\times 3^1\times {\mathrm{823}}^1\times {\mathrm{2143}}^1$

素因数の和:2973

約数の個数: 24

約数和(自身を含む): 49466368

約数和(自身を除く): 28302100

約数列:

[1, 2, 3, 4, 6, 12, 823, 1646, 2143, 2469, 3292, 4286, 4938, 6429, 8572, 9876, 12858, 25716, 1763689, 3527378, 5291067, 7054756, 10582134, 21164268]

約数ペア:

[(1, 21164268), (2, 10582134), (3, 7054756), (4, 5291067), (6, 3527378), (12, 1763689), (823, 25716), (1646, 12858), (2143, 9876), (2469, 8572), (3292, 6429), (4286, 4938)]