21328188

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{253907}}^1$

素因数の和:253921

約数の個数: 24

約数和(自身を含む): 56875392

約数和(自身を除く): 35547204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 253907, 507814, 761721, 1015628, 1523442, 1777349, 3046884, 3554698, 5332047, 7109396, 10664094, 21328188]

約数ペア:

[(1, 21328188), (2, 10664094), (3, 7109396), (4, 5332047), (6, 3554698), (7, 3046884), (12, 1777349), (14, 1523442), (21, 1015628), (28, 761721), (42, 507814), (84, 253907)]