21801878

素因数分解:

$2^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{4621}}^1$

素因数の和:4967

約数の個数: 16

約数和(自身を含む): 37493664

約数和(自身を除く): 15691786

約数列:

[1, 2, 7, 14, 337, 674, 2359, 4621, 4718, 9242, 32347, 64694, 1557277, 3114554, 10900939, 21801878]

約数ペア:

[(1, 21801878), (2, 10900939), (7, 3114554), (14, 1557277), (337, 64694), (674, 32347), (2359, 9242), (4621, 4718)]