21217772

素因数分解:

$2^2\times {\mathrm{1163}}^1\times {\mathrm{4561}}^1$

素因数の和:5728

約数の個数: 12

約数和(自身を含む): 37171176

約数和(自身を除く): 15953404

約数列:

[1, 2, 4, 1163, 2326, 4561, 4652, 9122, 18244, 5304443, 10608886, 21217772]

約数ペア:

[(1, 21217772), (2, 10608886), (4, 5304443), (1163, 18244), (2326, 9122), (4561, 4652)]