21495236

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{7043}}^1$

素因数の和:7163

約数の個数: 24

約数和(自身を含む): 43391040

約数和(自身を除く): 21895804

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 7043, 14086, 28172, 49301, 98602, 197204, 767687, 1535374, 3070748, 5373809, 10747618, 21495236]

約数ペア:

[(1, 21495236), (2, 10747618), (4, 5373809), (7, 3070748), (14, 1535374), (28, 767687), (109, 197204), (218, 98602), (436, 49301), (763, 28172), (1526, 14086), (3052, 7043)]