21212916

素因数分解:

$2^2\times 3^1\times {\mathrm{907}}^1\times {\mathrm{1949}}^1$

素因数の和:2863

約数の個数: 24

約数和(自身を含む): 49576800

約数和(自身を除く): 28363884

約数列:

[1, 2, 3, 4, 6, 12, 907, 1814, 1949, 2721, 3628, 3898, 5442, 5847, 7796, 10884, 11694, 23388, 1767743, 3535486, 5303229, 7070972, 10606458, 21212916]

約数ペア:

[(1, 21212916), (2, 10606458), (3, 7070972), (4, 5303229), (6, 3535486), (12, 1767743), (907, 23388), (1814, 11694), (1949, 10884), (2721, 7796), (3628, 5847), (3898, 5442)]