21406220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97301}}^1$

素因数の和:97321

約数の個数: 24

約数和(自身を含む): 49040208

約数和(自身を除く): 27633988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97301, 194602, 389204, 486505, 973010, 1070311, 1946020, 2140622, 4281244, 5351555, 10703110, 21406220]

約数ペア:

[(1, 21406220), (2, 10703110), (4, 5351555), (5, 4281244), (10, 2140622), (11, 1946020), (20, 1070311), (22, 973010), (44, 486505), (55, 389204), (110, 194602), (220, 97301)]