19994175

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1559}}^1$

素因数の和:1597

約数の個数: 48

約数和(自身を含む): 38688000

約数和(自身を除く): 18693825

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 135, 171, 225, 285, 475, 513, 675, 855, 1425, 1559, 2565, 4275, 4677, 7795, 12825, 14031, 23385, 29621, 38975, 42093, 70155, 88863, 116925, 148105, 210465, 266589, 350775, 444315, 740525, 799767, 1052325, 1332945, 2221575, 3998835, 6664725, 19994175]

約数ペア:

[(1, 19994175), (3, 6664725), (5, 3998835), (9, 2221575), (15, 1332945), (19, 1052325), (25, 799767), (27, 740525), (45, 444315), (57, 350775), (75, 266589), (95, 210465), (135, 148105), (171, 116925), (225, 88863), (285, 70155), (475, 42093), (513, 38975), (675, 29621), (855, 23385), (1425, 14031), (1559, 12825), (2565, 7795), (4275, 4677)]