21167188

素因数分解:

$2^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{1451}}^1$

素因数の和:1983

約数の個数: 24

約数和(自身を含む): 42444864

約数和(自身を除く): 21277676

約数列:

[1, 2, 4, 7, 14, 28, 521, 1042, 1451, 2084, 2902, 3647, 5804, 7294, 10157, 14588, 20314, 40628, 755971, 1511942, 3023884, 5291797, 10583594, 21167188]

約数ペア:

[(1, 21167188), (2, 10583594), (4, 5291797), (7, 3023884), (14, 1511942), (28, 755971), (521, 40628), (1042, 20314), (1451, 14588), (2084, 10157), (2902, 7294), (3647, 5804)]