21230780

素因数分解:

$2^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{3623}}^1$

素因数の和:3925

約数の個数: 24

約数和(自身を含む): 44749152

約数和(自身を除く): 23518372

約数列:

[1, 2, 4, 5, 10, 20, 293, 586, 1172, 1465, 2930, 3623, 5860, 7246, 14492, 18115, 36230, 72460, 1061539, 2123078, 4246156, 5307695, 10615390, 21230780]

約数ペア:

[(1, 21230780), (2, 10615390), (4, 5307695), (5, 4246156), (10, 2123078), (20, 1061539), (293, 72460), (586, 36230), (1172, 18115), (1465, 14492), (2930, 7246), (3623, 5860)]