21249564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{252971}}^1$

素因数の和:252985

約数の個数: 24

約数和(自身を含む): 56665728

約数和(自身を除く): 35416164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 252971, 505942, 758913, 1011884, 1517826, 1770797, 3035652, 3541594, 5312391, 7083188, 10624782, 21249564]

約数ペア:

[(1, 21249564), (2, 10624782), (3, 7083188), (4, 5312391), (6, 3541594), (7, 3035652), (12, 1770797), (14, 1517826), (21, 1011884), (28, 758913), (42, 505942), (84, 252971)]