19819527

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3821}}^1$

素因数の和:3863

約数の個数: 32

約数和(自身を含む): 34245120

約数和(自身を除く): 14425593

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3821, 5187, 11463, 26747, 49673, 72599, 80241, 149019, 217797, 347711, 508193, 943787, 1043133, 1524579, 2831361, 6606509, 19819527]

約数ペア:

[(1, 19819527), (3, 6606509), (7, 2831361), (13, 1524579), (19, 1043133), (21, 943787), (39, 508193), (57, 347711), (91, 217797), (133, 149019), (247, 80241), (273, 72599), (399, 49673), (741, 26747), (1729, 11463), (3821, 5187)]