21231140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151651}}^1$

素因数の和:151667

約数の個数: 24

約数和(自身を含む): 50955072

約数和(自身を除く): 29723932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151651, 303302, 606604, 758255, 1061557, 1516510, 2123114, 3033020, 4246228, 5307785, 10615570, 21231140]

約数ペア:

[(1, 21231140), (2, 10615570), (4, 5307785), (5, 4246228), (7, 3033020), (10, 2123114), (14, 1516510), (20, 1061557), (28, 758255), (35, 606604), (70, 303302), (140, 151651)]