19821321

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 31920000

約数和(自身を除く): 12098679

約数列:

[1, 3, 9, 13, 27, 39, 117, 149, 351, 379, 447, 1137, 1341, 1937, 3411, 4023, 4927, 5811, 10233, 14781, 17433, 44343, 52299, 56471, 133029, 169413, 508239, 734123, 1524717, 2202369, 6607107, 19821321]

約数ペア:

[(1, 19821321), (3, 6607107), (9, 2202369), (13, 1524717), (27, 734123), (39, 508239), (117, 169413), (149, 133029), (351, 56471), (379, 52299), (447, 44343), (1137, 17433), (1341, 14781), (1937, 10233), (3411, 5811), (4023, 4927)]