21007364

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9497}}^1$

素因数の和:9587

約数の個数: 24

約数和(自身を含む): 42551040

約数和(自身を除く): 21543676

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9497, 18994, 37988, 66479, 132958, 265916, 750263, 1500526, 3001052, 5251841, 10503682, 21007364]

約数ペア:

[(1, 21007364), (2, 10503682), (4, 5251841), (7, 3001052), (14, 1500526), (28, 750263), (79, 265916), (158, 132958), (316, 66479), (553, 37988), (1106, 18994), (2212, 9497)]