20699505

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9787}}^1$

素因数の和:9845

約数の個数: 24

約数和(自身を含む): 36646272

約数和(自身を除く): 15946767

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9787, 29361, 48935, 88083, 146805, 440415, 459989, 1379967, 2299945, 4139901, 6899835, 20699505]

約数ペア:

[(1, 20699505), (3, 6899835), (5, 4139901), (9, 2299945), (15, 1379967), (45, 459989), (47, 440415), (141, 146805), (235, 88083), (423, 48935), (705, 29361), (2115, 9787)]