21267945

素因数分解:

$3^2\times 5^1\times {\mathrm{593}}^1\times {\mathrm{797}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 36972936

約数和(自身を除く): 15704991

約数列:

[1, 3, 5, 9, 15, 45, 593, 797, 1779, 2391, 2965, 3985, 5337, 7173, 8895, 11955, 26685, 35865, 472621, 1417863, 2363105, 4253589, 7089315, 21267945]

約数ペア:

[(1, 21267945), (3, 7089315), (5, 4253589), (9, 2363105), (15, 1417863), (45, 472621), (593, 35865), (797, 26685), (1779, 11955), (2391, 8895), (2965, 7173), (3985, 5337)]